diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile index e5ab574ce8..4a02c4ef0d 100644 --- a/.devcontainer/Dockerfile +++ b/.devcontainer/Dockerfile @@ -12,6 +12,8 @@ RUN architecture=$(dpkg --print-architecture) && if [ "$architecture" = "arm64" fi RUN chmod 750 /app/sandbox/libjudger.so +RUN curl -L "https://github.com/MikeMirzayanov/testlib/raw/refs/heads/master/testlib.h" -o "/usr/include/testlib.h" + # Install dependencies RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \ && apt-get -y install --no-install-recommends netcat direnv diff --git a/.env.development b/.env.development index 31ff3fb203..bb9f6c1f29 100644 --- a/.env.development +++ b/.env.development @@ -47,4 +47,4 @@ TEST_DATABASE_URL=postgresql://postgres:1234@127.0.0.1:5434/skkuding?schema=publ # TODO: Add information where each of these variables are used -# TODO: I want to edit values after the container is created... +# TODO: I want to edit values after the container is created... \ No newline at end of file diff --git a/.gitignore b/.gitignore index 1809f60f8c..d010a875a3 100644 --- a/.gitignore +++ b/.gitignore @@ -1,3 +1,8 @@ +### Code-Server ### +code-server/git.sh +code-server/.env.development + + ### Node ### # Logs logs diff --git a/apps/iris/main.go b/apps/iris/main.go index 2697e716f9..52ec87483d 100644 --- a/apps/iris/main.go +++ b/apps/iris/main.go @@ -14,6 +14,7 @@ import ( "github.com/skkuding/codedang/apps/iris/src/service/file" "github.com/skkuding/codedang/apps/iris/src/service/logger" "github.com/skkuding/codedang/apps/iris/src/service/sandbox" + "github.com/skkuding/codedang/apps/iris/src/service/specialScript" "github.com/skkuding/codedang/apps/iris/src/service/testcase" "github.com/skkuding/codedang/apps/iris/src/utils" "go.opentelemetry.io/otel" @@ -56,6 +57,7 @@ func main() { database := postgres.NewPostgresDataSource(ctx) testcaseManager := testcase.NewTestcaseManager(database) + specialScriptManager := specialScript.NewSpecialScriptManager(database) fileManager := file.NewFileManager("/app/sandbox/results") langConfig := sandbox.NewLangConfig(fileManager, "/app/sandbox/policy/java_policy") @@ -68,6 +70,7 @@ func main() { compiler, runner, testcaseManager, + specialScriptManager, langConfig, fileManager, logProvider, diff --git a/apps/iris/src/common/constants/constants.go b/apps/iris/src/common/constants/constants.go index 0aae1ce8cc..bcf1daf17d 100644 --- a/apps/iris/src/common/constants/constants.go +++ b/apps/iris/src/common/constants/constants.go @@ -53,3 +53,16 @@ const ( EXCHANGE = "judger-exchange" RESULT_KEY = "result" ) + +type ExecType uint + +const ( + T_Judge ExecType = iota + T_Run + T_SpecialJudge + T_SpecialRun +) + +// To be changed +const MAX_SPECIAL_MEMORY = 256 * 1024 * 1024 +const MAX_SPECIAL_TIME = 10000 diff --git a/apps/iris/src/connector/factory.go b/apps/iris/src/connector/factory.go index d54e965518..e8d4e18db8 100644 --- a/apps/iris/src/connector/factory.go +++ b/apps/iris/src/connector/factory.go @@ -42,7 +42,7 @@ func Factory(c Module, p Providers, args ...any) Connector { if err != nil { panic(err) } - + return rabbitmq.NewConnector(consumer, producer, p.Router, p.Logger) case HTTP: diff --git a/apps/iris/src/connector/rabbitmq/connector.go b/apps/iris/src/connector/rabbitmq/connector.go index e3b84ca32d..9e8c9d84d8 100644 --- a/apps/iris/src/connector/rabbitmq/connector.go +++ b/apps/iris/src/connector/rabbitmq/connector.go @@ -72,6 +72,7 @@ func (c *connector) Disconnect() {} func (c *connector) handle(message amqp.Delivery, ctx context.Context) { resultChan := make(chan []byte) + if message.Type == "" { resultChan <- router.NewResponse("", nil, fmt.Errorf("type(message property) must not be empty")).Marshal() close(resultChan) diff --git a/apps/iris/src/handler/errors.go b/apps/iris/src/handler/errors.go index 8e42db253c..c6b66724ff 100644 --- a/apps/iris/src/handler/errors.go +++ b/apps/iris/src/handler/errors.go @@ -45,6 +45,7 @@ var ( ErrValidate = errors.New("validation error") ErrSandbox = errors.New("sandbox error") ErrTestcaseGet = errors.New("testcase get error") + ErrSpecialScriptGet = errors.New("specialScript get error") ErrCompile = errors.New("compile error") ErrWrongAnswer = errors.New("wrong answer") ErrCpuTimeLimitExceed = errors.New("cputime limit exceeded") @@ -52,4 +53,6 @@ var ( ErrMemoryLimitExceed = errors.New("memory limit exceeded") ErrRuntime = errors.New("runtime error") ErrSegFault = errors.New("segmentation fault") + ErrSpecialPE = errors.New("segmentation fault") + ErrSpecialFail = errors.New("segmentation fault") ) diff --git a/apps/iris/src/handler/interface.go b/apps/iris/src/handler/interface.go index 88cf12e964..3031ae565d 100644 --- a/apps/iris/src/handler/interface.go +++ b/apps/iris/src/handler/interface.go @@ -13,6 +13,19 @@ type Handler interface { // error mapper? (han) } +func SpecialExitCodeToJudgeResultCode(code int) JudgeResultCode { + switch code { + case sandbox.SPECIAL_WA: + return WRONG_ANSWER + case sandbox.SPECAIL_PE: + return SPECIAL_PE + case sandbox.SPECIAL_FAIL: + return SYSTEM_ERROR + } + + return ACCEPTED +} + // FIXME: use more proper name // FIXME: refactor func SandboxResultCodeToJudgeResultCode(code sandbox.ResultCode) JudgeResultCode { diff --git a/apps/iris/src/handler/judge-handler.go b/apps/iris/src/handler/judge-handler.go index 83c5305676..1cdba1d75e 100644 --- a/apps/iris/src/handler/judge-handler.go +++ b/apps/iris/src/handler/judge-handler.go @@ -15,6 +15,7 @@ import ( "github.com/skkuding/codedang/apps/iris/src/service/grader" "github.com/skkuding/codedang/apps/iris/src/service/logger" "github.com/skkuding/codedang/apps/iris/src/service/sandbox" + "github.com/skkuding/codedang/apps/iris/src/service/specialScript" "github.com/skkuding/codedang/apps/iris/src/service/testcase" "github.com/skkuding/codedang/apps/iris/src/utils" "go.opentelemetry.io/otel" @@ -23,15 +24,17 @@ import ( ) type Request struct { - Code string `json:"code"` - Language string `json:"language"` - ProblemId int `json:"problemId"` - TimeLimit int `json:"timeLimit"` - MemoryLimit int `json:"memoryLimit"` - UserTestcases *[]loader.Element `json:"userTestcases,omitempty"` // 사용자 테스트 케이스 + Code string `json:"code"` + Language string `json:"language"` + SpecialLanguage string `json:"specialLanguage"` + SpecialCode string `json:"specialCode"` + ProblemId int `json:"problemId"` + TimeLimit int `json:"timeLimit"` + MemoryLimit int `json:"memoryLimit"` + UserTestcases *[]loader.Element `json:"userTestcases,omitempty"` // 사용자 테스트 케이스 } -func (r Request) Validate() (*Request, error) { +func (r Request) Validate(execType constants.ExecType) (*Request, error) { if r.Code == "" { return nil, fmt.Errorf("code must not be empty") } @@ -50,6 +53,12 @@ func (r Request) Validate() (*Request, error) { if r.MemoryLimit <= 0 { return nil, fmt.Errorf("memoryLimit must not be empty or less than 0") } + if execType == constants.T_SpecialJudge && r.SpecialLanguage == "" { + return nil, fmt.Errorf("spcialLanguage must not be empty") + } + if execType == constants.T_SpecialJudge && r.SpecialCode == "" { + return nil, fmt.Errorf("spcialCode must not be empty") + } return &r, nil } @@ -110,21 +119,25 @@ const ( RUNTIME_ERROR SYSTEM_ERROR SEGMENATION_FAULT + SPECIAL_PE + SPECIAL_FAIL ) type JudgeHandler struct { - compiler sandbox.Compiler - runner sandbox.Runner - testcaseManager testcase.TestcaseManager - langConfig sandbox.LangConfig - file file.FileManager - logger logger.Logger + compiler sandbox.Compiler + runner sandbox.Runner + testcaseManager testcase.TestcaseManager + specialScriptManager specialScript.SpecialScriptManager + langConfig sandbox.LangConfig + file file.FileManager + logger logger.Logger } func NewJudgeHandler( compiler sandbox.Compiler, runner sandbox.Runner, testcaseManager testcase.TestcaseManager, + specialScriptManager specialScript.SpecialScriptManager, langConfig sandbox.LangConfig, file file.FileManager, logger logger.Logger, @@ -133,6 +146,7 @@ func NewJudgeHandler( compiler, runner, testcaseManager, + specialScriptManager, langConfig, file, logger, @@ -140,7 +154,8 @@ func NewJudgeHandler( } // handle top layer logical flow -func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan JudgeResultMessage) { +// func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan JudgeResultMessage) { +func (j *JudgeHandler) Handle(id string, data []byte, execType constants.ExecType, out chan JudgeResultMessage) { startedAt := time.Now() tracer := otel.Tracer("Handle Tracer") handleCtx, span := tracer.Start( @@ -154,6 +169,9 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg ) defer span.End() + isSpecial := execType == constants.T_SpecialJudge || execType == constants.T_SpecialRun + isRun := execType == constants.T_Run || execType == constants.T_SpecialRun + //TODO: validation logic here req := Request{} @@ -168,7 +186,7 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg close(out) return } - validReq, err := req.Validate() + validReq, err := req.Validate(execType) if err != nil { out <- JudgeResultMessage{nil, &HandlerError{ caller: "request validate", @@ -182,7 +200,7 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg dir := utils.RandString(constants.DIR_NAME_LEN) + id defer func() { - j.file.RemoveDir(dir) + // j.file.RemoveDir(dir) close(out) j.logger.Log(logger.DEBUG, fmt.Sprintf("task %s done: total time: %s", dir, time.Since(startedAt))) }() @@ -197,7 +215,8 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg return } - srcPath, err := j.langConfig.MakeSrcPath(dir, sandbox.Language(validReq.Language)) + srcPath, err := j.langConfig.MakeSrcPath(dir, sandbox.Language(validReq.Language), false) + j.logger.Log(logger.DEBUG, srcPath) if err != nil { out <- JudgeResultMessage{nil, &HandlerError{ caller: "handle", @@ -218,16 +237,53 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg return } + compileOutCh := make(chan result.ChResult) + go j.compile(handleCtx, compileOutCh, sandbox.CompileRequest{Dir: dir, Language: sandbox.Language(validReq.Language)}, false) + var tc testcase.Testcase + testcaseOutCh := make(chan result.ChResult) if req.UserTestcases != nil { tc = testcase.Testcase{Elements: *req.UserTestcases} } else { - testcaseOutCh := make(chan result.ChResult) - go j.getTestcase(handleCtx, testcaseOutCh, strconv.Itoa(validReq.ProblemId), hidden) + go j.getTestcase(handleCtx, testcaseOutCh, strconv.Itoa(validReq.ProblemId), isRun) + } - testcaseOut := <-testcaseOutCh + ssCompileOutCh := make(chan result.ChResult) + if isSpecial { + ssPath, err := j.langConfig.MakeSrcPath(dir, sandbox.Language(validReq.SpecialLanguage), true) + j.logger.Log(logger.DEBUG, ssPath) + if err != nil { + out <- JudgeResultMessage{nil, &HandlerError{ + caller: "handle", + err: fmt.Errorf("creating specialScript src path: %w", err), + level: logger.ERROR, + Message: err.Error(), + }} + return + } + + if err := j.file.CreateFile(ssPath, validReq.SpecialCode); err != nil { + out <- JudgeResultMessage{nil, &HandlerError{ + caller: "handle", + err: fmt.Errorf("creating specialScript src file: %w", err), + level: logger.ERROR, + Message: err.Error(), + }} + return + } + + go j.compile(handleCtx, ssCompileOutCh, sandbox.CompileRequest{Dir: dir, Language: sandbox.Language(validReq.SpecialLanguage)}, true) + } + compileResult := validateCompile(compileOutCh) + if compileResult.Err != nil { + out <- compileResult + return + } + + if req.UserTestcases == nil { + testcaseOut := <-testcaseOutCh if testcaseOut.Err != nil { out <- JudgeResultMessage{nil, &HandlerError{ caller: "handle", @@ -251,56 +307,75 @@ func (j *JudgeHandler) Handle(id string, data []byte, hidden bool, out chan Judg } } - compileOutCh := make(chan result.ChResult) - go j.compile(handleCtx, compileOutCh, sandbox.CompileRequest{Dir: dir, Language: sandbox.Language(validReq.Language)}) + if isSpecial { + ssCompileResult := validateCompile(ssCompileOutCh) + if ssCompileResult.Err != nil { + out <- ssCompileResult + return + } + } - compileOut := <-compileOutCh + tcNum := tc.Count() + cnt := make(chan int) + for i := 0; i < tcNum; i++ { + go j.judgeTestcase(i, dir, validReq, tc.Elements[i], out, cnt, isSpecial) + } + + for i := 0; i < tcNum; i++ { + <-cnt + } +} + +// wrapper to use goroutine +func (j *JudgeHandler) compile(traceCtx context.Context, out chan<- result.ChResult, dto sandbox.CompileRequest, isSpecial bool) { + tracer := otel.Tracer("Compile Tracer") + _, span := tracer.Start(traceCtx, "go:goroutine:compile") + defer span.End() + + res, err := j.compiler.Compile(dto, isSpecial) + if err != nil { + out <- result.ChResult{Err: err} + return + } + out <- result.ChResult{Data: res} +} +func validateCompile(compileOutCh <-chan result.ChResult) JudgeResultMessage { + compileOut := <-compileOutCh if compileOut.Err != nil { // 컴파일러 실행 과정이나 이후 처리 과정에서 오류가 생긴 경우 - out <- JudgeResultMessage{nil, &HandlerError{ + return JudgeResultMessage{nil, &HandlerError{ caller: "handle", err: fmt.Errorf("%w: %s", ErrSandbox, compileOut.Err), level: logger.ERROR, }} - return } compileResult, ok := compileOut.Data.(sandbox.CompileResult) if !ok { - out <- JudgeResultMessage{nil, &HandlerError{ + return JudgeResultMessage{nil, &HandlerError{ caller: "handle", err: fmt.Errorf("%w: CompileResult", ErrTypeAssertionFail), level: logger.INFO, }} - return } if compileResult.ExecResult.ResultCode != sandbox.SUCCESS { // 컴파일러를 실행했으나 컴파일에 실패한 경우 // FIXME: 함수로 분리 - out <- JudgeResultMessage{nil, &HandlerError{ + return JudgeResultMessage{nil, &HandlerError{ err: ErrCompile, Message: compileResult.ErrOutput, }} - return } - tcNum := tc.Count() - cnt := make(chan int) - for i := 0; i < tcNum; i++ { - go j.judgeTestcase(i, dir, validReq, tc.Elements[i], out, cnt) - } - - for i := 0; i < tcNum; i++ { - <-cnt - } + return JudgeResultMessage{nil, nil} } // wrapper to use goroutine -func (j *JudgeHandler) compile(traceCtx context.Context, out chan<- result.ChResult, dto sandbox.CompileRequest) { - tracer := otel.Tracer("Compile Tracer") - _, span := tracer.Start(traceCtx, "go:goroutine:compile") +func (j *JudgeHandler) getTestcase(traceCtx context.Context, out chan<- result.ChResult, problemId string, isRun bool) { + tracer := otel.Tracer("GetTestcase Tracer") + _, span := tracer.Start(traceCtx, "go:goroutine:getTestcase") defer span.End() + res, err := j.testcaseManager.GetTestcase(problemId, !isRun) - res, err := j.compiler.Compile(dto) if err != nil { out <- result.ChResult{Err: err} return @@ -308,25 +383,28 @@ func (j *JudgeHandler) compile(traceCtx context.Context, out chan<- result.ChRes out <- result.ChResult{Data: res} } -// wrapper to use goroutine -func (j *JudgeHandler) getTestcase(traceCtx context.Context, out chan<- result.ChResult, problemId string, hidden bool) { - tracer := otel.Tracer("GetTestcase Tracer") - _, span := tracer.Start(traceCtx, "go:goroutine:getTestcase") - defer span.End() - - res, err := j.testcaseManager.GetTestcase(problemId, hidden) +func (j *JudgeHandler) createSpecialFiles(idx int, dir string, input string, answer string) error { + inputPath, err := j.file.MakeInPath(dir, idx) + if err != nil { + return fmt.Errorf("input: %w", err) + } + if err := j.file.CreateFile(inputPath, input); err != nil { + return fmt.Errorf("input: %w", err) + } + ansPath, err := j.file.MakeAnsPath(dir, idx) if err != nil { - out <- result.ChResult{Err: err} - return + return fmt.Errorf("answer: %w", err) } - out <- result.ChResult{Data: res} + if err := j.file.CreateFile(ansPath, answer); err != nil { + return fmt.Errorf("answer: %w", err) + } + + return nil } func (j *JudgeHandler) judgeTestcase(idx int, dir string, validReq *Request, - tc loader.Element, out chan JudgeResultMessage, cnt chan int) { - - var accepted bool + tc loader.Element, out chan JudgeResultMessage, cnt chan int, isSpecial bool) { res := JudgeResult{} @@ -338,8 +416,7 @@ func (j *JudgeHandler) judgeTestcase(idx int, dir string, validReq *Request, Language: sandbox.Language(validReq.Language), TimeLimit: validReq.TimeLimit, MemoryLimit: validReq.MemoryLimit, - }, []byte(tc.In)) - + }, []byte(tc.In), false, idx) if err != nil { j.logger.Log(logger.ERROR, fmt.Sprintf("Error while running sandbox: %s", err.Error())) res.ResultCode = SYSTEM_ERROR @@ -356,15 +433,38 @@ func (j *JudgeHandler) judgeTestcase(idx int, dir string, validReq *Request, goto Send } - // 하나당 약 50microsec 10개 채점시 500microsec. - // output이 커지면 더 길어짐 -> FIXME: 최적화 과정에서 goroutine으로 수정 - // st := time.Now() - accepted = grader.Grade([]byte(tc.Out), runResult.Output) - - if accepted { + if !isSpecial && grader.Grade([]byte(tc.Out), runResult.Output) { res.SetJudgeResultCode(ACCEPTED) - } else { + } else if !isSpecial { res.SetJudgeResultCode(WRONG_ANSWER) + } else { + if err := j.createSpecialFiles(idx, dir, tc.In, tc.Out); err != nil { + j.logger.Log(logger.ERROR, fmt.Sprintf("Error while running sandbox: %s", err.Error())) + res.ResultCode = SYSTEM_ERROR + res.Error = "Cannot create files for special judge" + goto Send + } + + specialResult, err := j.runner.Run(sandbox.RunRequest{ + Order: idx, + Dir: dir, + Language: sandbox.Language(validReq.Language), + TimeLimit: constants.MAX_SPECIAL_TIME, + MemoryLimit: constants.MAX_SPECIAL_MEMORY, + }, []byte(nil), true, idx) + if err != nil { + j.logger.Log(logger.ERROR, fmt.Sprintf("Error while running sandbox: %s", err.Error())) + res.ResultCode = SYSTEM_ERROR + res.Error = string(specialResult.ErrOutput) + goto Send + } + + if specialResult.ExecResult.ResultCode != sandbox.RUN_SUCCESS { + res.Error = string(specialResult.ErrOutput) + res.SetJudgeResultCode(SpecialExitCodeToJudgeResultCode(specialResult.ExecResult.ExitCode)) + } else { + res.SetJudgeResultCode(ACCEPTED) + } } // TODO: ChResult 구조체 활용 diff --git a/apps/iris/src/router/response.go b/apps/iris/src/router/response.go index 53ea42697b..ea926f8189 100644 --- a/apps/iris/src/router/response.go +++ b/apps/iris/src/router/response.go @@ -28,6 +28,8 @@ const ( TESTCASE_ERROR SEGMENTATION_FAULT_ERROR SERVER_ERROR + SPECIAL_PE + SPECIAL_FAIL ) func NewResponse(id string, data json.RawMessage, err error) *Response { @@ -100,5 +102,11 @@ func ErrorToResultCode(err error) ResultCode { if errors.Is(err, handler.ErrSegFault) { return SEGMENTATION_FAULT_ERROR } + if errors.Is(err, handler.ErrSpecialPE) { + return SPECIAL_PE + } + if errors.Is(err, handler.ErrSpecialFail) { + return SPECIAL_FAIL + } return SERVER_ERROR } diff --git a/apps/iris/src/router/router.go b/apps/iris/src/router/router.go index 5e8e8707a5..4ce3351c3d 100644 --- a/apps/iris/src/router/router.go +++ b/apps/iris/src/router/router.go @@ -3,6 +3,7 @@ package router import ( "fmt" + "github.com/skkuding/codedang/apps/iris/src/common/constants" "github.com/skkuding/codedang/apps/iris/src/handler" "github.com/skkuding/codedang/apps/iris/src/service/logger" ) @@ -39,10 +40,11 @@ func (r *router) Route(path string, id string, data []byte, out chan []byte) { judgeChan := make(chan handler.JudgeResultMessage) switch path { case Judge: - go r.judgeHandler.Handle(id, data, true, judgeChan) - case Run, UserTestCase: - go r.judgeHandler.Handle(id, data, false, judgeChan) + go r.judgeHandler.Handle(id, data, constants.T_Judge, judgeChan) case SpecialJudge: + go r.judgeHandler.Handle(id, data, constants.T_SpecialJudge, judgeChan) + case Run, UserTestCase: + go r.judgeHandler.Handle(id, data, constants.T_Run, judgeChan) default: err := fmt.Errorf("invalid request type: %s", path) r.errHandle(err) diff --git a/apps/iris/src/service/file/manager.go b/apps/iris/src/service/file/manager.go index f6471122c9..2c8805aee6 100644 --- a/apps/iris/src/service/file/manager.go +++ b/apps/iris/src/service/file/manager.go @@ -4,6 +4,7 @@ import ( "bytes" "fmt" "os" + "strconv" "github.com/skkuding/codedang/apps/iris/src/common/constants" ) @@ -13,6 +14,8 @@ type FileManager interface { RemoveDir(dir string) error CreateFile(path string, data string) error ReadFile(path string) ([]byte, error) + MakeInPath(dir string, id int) (string, error) + MakeAnsPath(dir string, id int) (string, error) MakeFilePath(dir string, fileName string) *bytes.Buffer } @@ -55,6 +58,16 @@ func (f *fileManager) ReadFile(path string) ([]byte, error) { return data, nil } +func (f *fileManager) MakeInPath(dir string, id int) (string, error) { + fileName := strconv.Itoa(id) + ".in" + return f.MakeFilePath(dir, fileName).String(), nil +} + +func (f *fileManager) MakeAnsPath(dir string, id int) (string, error) { + fileName := strconv.Itoa(id) + ".ans" + return f.MakeFilePath(dir, fileName).String(), nil +} + func (f *fileManager) MakeFilePath(dir string, fileName string) *bytes.Buffer { var b bytes.Buffer b.WriteString(f.baseDir) diff --git a/apps/iris/src/service/grader/grader.go b/apps/iris/src/service/grader/grader.go index 094f491c9e..d6fdd7afa3 100644 --- a/apps/iris/src/service/grader/grader.go +++ b/apps/iris/src/service/grader/grader.go @@ -9,6 +9,10 @@ func Grade(answer []byte, output []byte) bool { return bytes.Equal(TrimWhitespaceBeforeNewline(answer), TrimWhitespaceBeforeNewline(output)) } +func SpecialGrade(){ + +} + func TrimWhitespaceBeforeNewline(a []byte) []byte { sep := []byte("\n") b := bytes.Split(bytes.TrimRightFunc(a, unicode.IsSpace), sep) diff --git a/apps/iris/src/service/sandbox/compiler.go b/apps/iris/src/service/sandbox/compiler.go index be7a23d882..4e2aedcf1d 100644 --- a/apps/iris/src/service/sandbox/compiler.go +++ b/apps/iris/src/service/sandbox/compiler.go @@ -19,7 +19,7 @@ type CompileRequest struct { } type Compiler interface { - Compile(dto CompileRequest) (CompileResult, error) + Compile(dto CompileRequest, isSpecial bool) (CompileResult, error) } type compiler struct { @@ -33,10 +33,10 @@ func NewCompiler(sandbox Sandbox, langConfig LangConfig, file file.FileManager, return &compiler{sandbox, langConfig, file, logger} } -func (c *compiler) Compile(dto CompileRequest) (CompileResult, error) { +func (c *compiler) Compile(dto CompileRequest, isSpecial bool) (CompileResult, error) { dir, language := dto.Dir, dto.Language - execArgs, err := c.langConfig.ToCompileExecArgs(dir, language) + execArgs, err := c.langConfig.ToCompileExecArgs(dir, language, isSpecial) if err != nil { return CompileResult{}, err } diff --git a/apps/iris/src/service/sandbox/langConfig.go b/apps/iris/src/service/sandbox/langConfig.go index ac3df2e4ce..3888f531ae 100644 --- a/apps/iris/src/service/sandbox/langConfig.go +++ b/apps/iris/src/service/sandbox/langConfig.go @@ -44,23 +44,28 @@ type config struct { } type LangConfig interface { - GetConfig(language Language) (config, error) - MakeSrcPath(dir string, language Language) (string, error) - ToCompileExecArgs(dir string, language Language) (ExecArgs, error) - ToRunExecArgs(dir string, language Language, order int, limit Limit, fileIo bool) (ExecArgs, error) + GetConfig(language Language, isSpecial bool) (config, error) + MakeSrcPath(dir string, language Language, isSpecial bool) (string, error) + ToCompileExecArgs(dir string, language Language, isSpecial bool) (ExecArgs, error) + ToRunExecArgs(dir string, language Language, order int, limit Limit, fileIo bool, isSpecial bool, idx int) (ExecArgs, error) } type langConfig struct { - cConfig config - cppConfig config - javaConfig config - pyConfig config - file file.FileManager + cConfig config + cppConfig config + javaConfig config + pyConfig config + cSpecialConfig config + cppSpecialConfig config + javaSpecialConfig config + pySpecialConfig config + file file.FileManager } func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig { defaultEnv := []string{"LANG=en_US.UTF-8", "LANGUAGE=en_US:en", "LC_ALL=en_US.UTF-8"} - var cConfig = config{ + + cConfig := config{ Language: C, SrcName: "main.c", ExeName: "main", @@ -79,7 +84,11 @@ func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig { env: defaultEnv, } - var cppConfig = config{ + cSpecialConfig := cConfig + cSpecialConfig.SrcName = "judge.c" + cSpecialConfig.ExeName = "judge" + + cppConfig := config{ Language: CPP, SrcName: "main.cpp", ExeName: "main", @@ -98,7 +107,12 @@ func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig { env: defaultEnv, } - var javaConfig = config{ + cppSpecialConfig := cppConfig + cppSpecialConfig.SrcName = "judge.cpp" + cppSpecialConfig.ExeName = "judge" + // cppSpecialConfig.CompileArgs += "-I/usr/include/testlib.h" + + javaConfig := config{ Language: JAVA, SrcName: "Main.java", ExeName: "Main", @@ -121,7 +135,11 @@ func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig { env: defaultEnv, } - var pyConfig = config{ + javaSpecialConfig := javaConfig + javaSpecialConfig.SrcName = "Judge.java" + javaSpecialConfig.ExeName = "Judge" + + pyConfig := config{ Language: PYTHON, SrcName: "solution.py", // [IMPORTANT] 도커 이미지 변경 시 파이썬 버전도 변경 필요함 @@ -138,33 +156,57 @@ func NewLangConfig(file file.FileManager, javaPolicyPath string) *langConfig { env: append(defaultEnv, "PYTHONIOENCODING=utf-8"), } + pySpecialConfig := pyConfig + pySpecialConfig.SrcName = "judge.py" + pySpecialConfig.ExeName = "__pycache__/judge.cpython-312.pyc" + return &langConfig{ - cConfig: cConfig, - cppConfig: cppConfig, - javaConfig: javaConfig, - pyConfig: pyConfig, - file: file, + cConfig: cConfig, + cppConfig: cppConfig, + javaConfig: javaConfig, + pyConfig: pyConfig, + cSpecialConfig: cSpecialConfig, + cppSpecialConfig: cppSpecialConfig, + javaSpecialConfig: javaSpecialConfig, + pySpecialConfig: pySpecialConfig, + file: file, } } -func (l *langConfig) GetConfig(language Language) (config, error) { - switch language { - case C: - return l.cConfig, nil - case CPP: - return l.cppConfig, nil - case JAVA: - return l.javaConfig, nil - // case PYTHON2: - // return py2Config, nil - case PYTHON: - return l.pyConfig, nil +// hereer with main.go make newconfig ... +func (l *langConfig) GetConfig(language Language, isSpecial bool) (config, error) { + if !isSpecial { + switch language { + case C: + return l.cConfig, nil + case CPP: + return l.cppConfig, nil + case JAVA: + return l.javaConfig, nil + // case PYTHON2: + // return py2Config, nil + case PYTHON: + return l.pyConfig, nil + } + } else { + switch language { + case C: + return l.cSpecialConfig, nil + case CPP: + return l.cppSpecialConfig, nil + case JAVA: + return l.javaSpecialConfig, nil + // case PYTHON2: + // return py2Config, nil + case PYTHON: + return l.pySpecialConfig, nil + } } return config{}, fmt.Errorf("unsupported language: %s", language) } -func (l *langConfig) MakeSrcPath(dir string, language Language) (string, error) { - c, err := l.GetConfig(language) +func (l *langConfig) MakeSrcPath(dir string, language Language, isSpecial bool) (string, error) { + c, err := l.GetConfig(language, isSpecial) if err != nil { return "", err } @@ -187,8 +229,8 @@ func (l *langConfig) MakeSrcPath(dir string, language Language) (string, error) // return file.MakeFilePath(dir, strconv.Itoa(order)+".error").String() // } -func (l *langConfig) ToCompileExecArgs(dir string, language Language) (ExecArgs, error) { - c, err := l.GetConfig(language) +func (l *langConfig) ToCompileExecArgs(dir string, language Language, isSpecial bool) (ExecArgs, error) { + c, err := l.GetConfig(language, isSpecial) if err != nil { return ExecArgs{}, err } @@ -222,19 +264,32 @@ func (l *langConfig) ToCompileExecArgs(dir string, language Language) (ExecArgs, }, nil } -func (l *langConfig) ToRunExecArgs(dir string, language Language, order int, limit Limit, fileIo bool) (ExecArgs, error) { - c, err := l.GetConfig(language) +func (l *langConfig) ToRunExecArgs(dir string, language Language, order int, limit Limit, fileIo bool, isSpecial bool, idx int) (ExecArgs, error) { + c, err := l.GetConfig(language, isSpecial) if err != nil { return ExecArgs{}, err } exePath := l.file.MakeFilePath(dir, c.ExeName).String() exeDir := l.file.MakeFilePath(dir, "").String() - outputPath := l.file.MakeFilePath(dir, strconv.Itoa(order)+".out").String() - errorPath := l.file.MakeFilePath(dir, strconv.Itoa(order)+".error").String() + var outputPath, errorPath string + if !isSpecial { + outputPath = l.file.MakeFilePath(dir, strconv.Itoa(order)+".out").String() + errorPath = l.file.MakeFilePath(dir, strconv.Itoa(order)+".error").String() + } else { + outputPath = l.file.MakeFilePath(dir, strconv.Itoa(order)+".spout").String() + errorPath = l.file.MakeFilePath(dir, strconv.Itoa(order)+".sperror").String() + } // run args 설정 - args := strings.Replace(c.RunArgs, "{maxMemory}", strconv.Itoa(limit.Memory), 1) + var args string + if isSpecial { + args += l.file.MakeFilePath(dir, strconv.Itoa(idx)+".in ").String() + args += l.file.MakeFilePath(dir, strconv.Itoa(idx)+".out ").String() + args += l.file.MakeFilePath(dir, strconv.Itoa(idx)+".ans").String() + } + args += c.RunArgs + args = strings.Replace(args, "{maxMemory}", strconv.Itoa(limit.Memory), 1) args = strings.Replace(args, "{exePath}", exePath, 1) args = strings.Replace(args, "{exeDir}", exeDir, 1) diff --git a/apps/iris/src/service/sandbox/runner.go b/apps/iris/src/service/sandbox/runner.go index 8bc7309142..5f02ff2ac0 100644 --- a/apps/iris/src/service/sandbox/runner.go +++ b/apps/iris/src/service/sandbox/runner.go @@ -24,7 +24,7 @@ type RunRequest struct { } type Runner interface { - Run(dto RunRequest, input []byte) (RunResult, error) + Run(dto RunRequest, input []byte, isSpecial bool, idx int) (RunResult, error) } type runner struct { @@ -38,7 +38,7 @@ func NewRunner(sandbox Sandbox, langConfig LangConfig, file file.FileManager, lo return &runner{sandbox, langConfig, file, logger} } -func (r *runner) Run(req RunRequest, input []byte) (RunResult, error) { +func (r *runner) Run(req RunRequest, input []byte, isSpecial bool, idx int) (RunResult, error) { execArgs, err := r.langConfig.ToRunExecArgs( req.Dir, @@ -49,7 +49,7 @@ func (r *runner) Run(req RunRequest, input []byte) (RunResult, error) { RealTime: req.TimeLimit * 3, Memory: req.MemoryLimit, }, - false, + false, isSpecial, idx, ) if err != nil { return RunResult{}, err @@ -70,8 +70,14 @@ func (r *runner) Run(req RunRequest, input []byte) (RunResult, error) { } orderStr := strconv.Itoa(req.Order) + var errExtension string + if !isSpecial { + errExtension = ".error" + } else { + errExtension = ".sperror" + } if execResult.ResultCode != RUN_SUCCESS { - errorPath := r.file.MakeFilePath(req.Dir, orderStr+".error").String() + errorPath := r.file.MakeFilePath(req.Dir, orderStr+errExtension).String() errData, err := r.file.ReadFile(errorPath) if err != nil { return runResult, fmt.Errorf("reading error output file: %w", err) diff --git a/apps/iris/src/service/sandbox/statusCode.go b/apps/iris/src/service/sandbox/statusCode.go index f170751325..0a49ed8413 100644 --- a/apps/iris/src/service/sandbox/statusCode.go +++ b/apps/iris/src/service/sandbox/statusCode.go @@ -26,3 +26,12 @@ const ( // ResultCode RUNTIME_ERROR SYSTEM_ERROR ) + +// type SpecialExitCode int8 + +const ( + SPECIAL_OK int = 0 + iota + SPECIAL_WA + SPECAIL_PE + SPECIAL_FAIL +) diff --git a/apps/iris/src/service/specialScript/data.go b/apps/iris/src/service/specialScript/data.go new file mode 100644 index 0000000000..3f9f95a8e2 --- /dev/null +++ b/apps/iris/src/service/specialScript/data.go @@ -0,0 +1,3 @@ +package specialScript + +type SpecialScript string diff --git a/apps/iris/src/service/specialScript/manager.go b/apps/iris/src/service/specialScript/manager.go new file mode 100644 index 0000000000..294a5566e4 --- /dev/null +++ b/apps/iris/src/service/specialScript/manager.go @@ -0,0 +1,26 @@ +package specialScript + +import ( + "github.com/skkuding/codedang/apps/iris/src/loader" +) + +type SpecialScriptManager interface { + GetSpecialScript(problemId string) (string, error) +} + +type specialScriptManager struct { + database loader.Read +} + +func NewSpecialScriptManager(database loader.Read) *specialScriptManager { + return &specialScriptManager{database: database} +} + +func (t *specialScriptManager) GetSpecialScript(problemId string) (string, error) { + // data, err := t.database.Get(problemId) + // if err != nil { + // return "", fmt.Errorf("GetSpecialScript: %w", err) + // } + + return "#include \n int main(void){ printf(\" helloworld \"); return 0;}", nil +} diff --git a/code-server/Dockerfile b/code-server/Dockerfile new file mode 100644 index 0000000000..4a02c4ef0d --- /dev/null +++ b/code-server/Dockerfile @@ -0,0 +1,37 @@ +FROM mcr.microsoft.com/vscode/devcontainers/typescript-node:20-bullseye + +# Install sandbox +RUN mkdir -p /app/sandbox/policy /app/sandbox/results \ + && mkdir -p /app/sandbox/logs/run /app/sandbox/logs/compile +RUN chmod -R 777 /app/sandbox + +RUN architecture=$(dpkg --print-architecture) && if [ "$architecture" = "arm64" ]; then \ + curl -L "https://github.com/skkuding/codedang/releases/download/alpha/libjudger-arm.so" -o "/app/sandbox/libjudger.so"; \ + else \ + curl -L "https://github.com/skkuding/codedang/releases/download/alpha/libjudger-x64.so" -o "/app/sandbox/libjudger.so"; \ + fi +RUN chmod 750 /app/sandbox/libjudger.so + +RUN curl -L "https://github.com/MikeMirzayanov/testlib/raw/refs/heads/master/testlib.h" -o "/usr/include/testlib.h" + +# Install dependencies +RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \ + && apt-get -y install --no-install-recommends netcat direnv + +# Add go binaries to secure path +RUN echo 'Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/go/bin"' > /etc/sudoers.d/secure_path +RUN chmod 440 /etc/sudoers.d/secure_path + +# Install RabbitMQ CLI tool +RUN curl https://raw.githubusercontent.com/rabbitmq/rabbitmq-server/main/deps/rabbitmq_management/bin/rabbitmqadmin -o /usr/local/bin/rabbitmqadmin +RUN chmod 755 /usr/local/bin/rabbitmqadmin + +# Install AWS CLI +RUN architecture=$(dpkg --print-architecture) && if [ "$architecture" = "arm64" ]; then \ + curl "https://awscli.amazonaws.com/awscli-exe-linux-aarch64.zip" -o "awscli.zip"; \ + else \ + curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscli.zip"; \ + fi \ + && unzip awscli.zip \ + && ./aws/install \ + && rm -rf aws awscli.zip diff --git a/code-server/code-server.sh b/code-server/code-server.sh new file mode 100755 index 0000000000..503b5f2fe3 --- /dev/null +++ b/code-server/code-server.sh @@ -0,0 +1,27 @@ +#!/usr/bin/env bash + +if dpkg -s code-server &>/dev/null; then + echo 'code-server is installed' +else + curl -fsSL https://code-server.dev/install.sh | sh +fi + + +# git set up +cd /workspace +source ./code-server/git.sh + +# install golang +rm -rf /usr/local/go +rm -rf /workspace/go1.23.3.* +wget https://go.dev/dl/go1.23.3.linux-amd64.tar.gz +sudo tar -C /usr/local -xzf go1.23.3.linux-amd64.tar.gz +echo "export PATH=$PATH:/usr/local/go/bin" >> ~/.bashrc +source ~/.bashrc + +# postcreated script +source ./scripts/setup.sh + +# code-server start +./code-server/extensions.sh +code-server --config /workspace/code-server/config.yaml /workspace diff --git a/code-server/config.yaml b/code-server/config.yaml new file mode 100644 index 0000000000..64ea34227a --- /dev/null +++ b/code-server/config.yaml @@ -0,0 +1,5 @@ +bind-addr: 0.0.0.0:1234 +# bind-addr: 127.0.0.1:1234 +auth: password +password: codedang +cert: false \ No newline at end of file diff --git a/code-server/docker-compose.sh b/code-server/docker-compose.sh new file mode 100755 index 0000000000..b88fd39185 --- /dev/null +++ b/code-server/docker-compose.sh @@ -0,0 +1 @@ +docker compose --profile devcontainer up --force-recreate \ No newline at end of file diff --git a/code-server/extensions.sh b/code-server/extensions.sh new file mode 100755 index 0000000000..122f52bf82 --- /dev/null +++ b/code-server/extensions.sh @@ -0,0 +1,22 @@ +extensions=( + "apollographql.vscode-apollo" + "bradlc.vscode-tailwindcss" + "bruno-api-client.bruno" + "csstools.postcss" + "dbaeumer.vscode-eslint" + "eamodio.gitlens" + "editorconfig.editorconfig" + "esbenp.prettier-vscode" + "golang.go" + "hashicorp.terraform" + "ms-azuretools.vscode-docker" + "prisma.prisma" + "mhutchie.git-graph" + "vscodevim.vim" +) + +for extension in "${extensions[@]}" +do + echo "----------" + code-server --install-extension $extension --force +done diff --git a/code-server/script.txt b/code-server/script.txt new file mode 100644 index 0000000000..b378b70618 --- /dev/null +++ b/code-server/script.txt @@ -0,0 +1,34 @@ +sudo -E go run main.go + +type judge +message_id 1 +{ +"problemId": 1, +"code": "#include\n\n int main(){\nint a;\n +scanf(\"%d\\n\", &a);\n printf(\"%d\\n\", a);\n return 0;}", +"language": "C", +"timeLimit": 1000, +"memoryLimit": 268435156 +} +ALLOWED_COMMANDS=("ls" "pwd" "date" "whoami") +for var in "${array[@]}" + +{ +"problemId":1, +"code":"#include \n int main(int argc, char *argv[]) { \n int j; \n for (j = 0; j < argc; j++) \n printf(\" argv[%d]: %s \\n \" , j, argv[j]);\nreturn 0; \n }", +"language": "C", +"timeLimit": 1000, +"memoryLimit": 268435156, +"specialLanguage": "Cpp", +"specialCode":"#include \n int main(int argc, char* argv[]){registerTestlibCmd(argc, argv); int s = ouf.readInt();\n printf(\" output : %d \", s); quit(_ok, \"passed\");}" +} + +{ +"problemId":1, +"code":"#include \n int main(int argc, char *argv[]) { \n int j; printf(\"1\");\n return 0; \n }", +"language": "C", +"timeLimit": 1000, +"memoryLimit": 268435156, +"specialLanguage": "Cpp", +"specialCode":"#include \n int main(int argc, char* argv[]){registerTestlibCmd(argc, argv); int s = ouf.readInt();\n printf(\" output : %d \", s); quit(_ok, \"passed\");}" +} diff --git a/config.yaml b/config.yaml new file mode 100644 index 0000000000..72b5a70975 --- /dev/null +++ b/config.yaml @@ -0,0 +1,5 @@ +# bind-addr: 127.0.0.1:8080 +bind-addr: 0.0.0.0:1234 +auth: password +password: 1234 +cert: false diff --git a/docker-compose.yml b/docker-compose.yml index 2b260f9fc2..160171314b 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -6,9 +6,10 @@ services: container_name: codedang-dev build: context: . - dockerfile: .devcontainer/Dockerfile + dockerfile: ./code-server/Dockerfile volumes: - .:/workspace:cached + - ./:/workspace depends_on: - rabbitmq - database @@ -18,6 +19,7 @@ services: environment: DEVCONTAINER: 1 network_mode: host + entrypoint: sh -c "/workspace/code-server/code-server.sh" local-storage: profiles: ['devcontainer'] diff --git a/scripts/setup.sh b/scripts/setup.sh index 14d323776f..9e8347df0e 100755 --- a/scripts/setup.sh +++ b/scripts/setup.sh @@ -40,7 +40,6 @@ done < .env.development # Add APP_ENV=local to .env file echo "APP_ENV=local" >> .env - # If dotenv schema is not updated, remove the file if [ -f apps/backend/.env ] && grep -q DATABASE_URL apps/backend/.env then @@ -64,6 +63,8 @@ pnpm install # Install lefthook for git hook pnpm exec lefthook install +# echo "done" asdfasfd + # Init MinIO pnpm run init:storage @@ -87,6 +88,9 @@ do sleep 5 done +# Import testlib.h for Special Judge +curl -L "https://github.com/MikeMirzayanov/testlib/raw/refs/heads/master/testlib.h" -o "/usr/include/testlib.h" + # Install Go dependencies cd $BASEDIR/apps/iris go get diff --git a/testlib.h b/testlib.h new file mode 100644 index 0000000000..4e1d3682e1 --- /dev/null +++ b/testlib.h @@ -0,0 +1,6299 @@ +/* + * It is strictly recommended to include "testlib.h" before any other include + * in your code. In this case testlib overrides compiler specific "random()". + * + * If you can't compile your code and compiler outputs something about + * ambiguous call of "random_shuffle", "rand" or "srand" it means that + * you shouldn't use them. Use "shuffle", and "rnd.next()" instead of them + * because these calls produce stable result for any C++ compiler. Read + * sample generator sources for clarification. + * + * Please read the documentation for class "random_t" and use "rnd" instance in + * generators. Probably, these sample calls will be useful for you: + * rnd.next(); rnd.next(100); rnd.next(1, 2); + * rnd.next(3.14); rnd.next("[a-z]{1,100}"). + * + * Also read about wnext() to generate off-center random distribution. + * + * See https://github.com/MikeMirzayanov/testlib/ to get latest version or bug tracker. + */ + +#ifndef _TESTLIB_H_ +#define _TESTLIB_H_ + +/* + * Copyright (c) 2005-2024 + */ + +#define VERSION "0.9.44" + +/* + * Mike Mirzayanov + * + * This material is provided "as is", with absolutely no warranty expressed + * or implied. Any use is at your own risk. + * + * Permission to use or copy this software for any purpose is hereby granted + * without fee, provided the above notices are retained on all copies. + * Permission to modify the code and to distribute modified code is granted, + * provided the above notices are retained, and a notice that the code was + * modified is included with the above copyright notice. + * + */ + +/* NOTE: This file contains testlib library for C++. + * + * Check, using testlib running format: + * check.exe [ [-appes]], + * If result file is specified it will contain results. + * + * Validator, using testlib running format: + * validator.exe < input.txt, + * It will return non-zero exit code and writes message to standard output. + * + * Generator, using testlib running format: + * gen.exe [parameter-1] [parameter-2] [... paramerter-n] + * You can write generated test(s) into standard output or into the file(s). + * + * Interactor, using testlib running format: + * interactor.exe [ [ [-appes]]], + * Reads test from inf (mapped to args[1]), writes result to tout (mapped to argv[2], + * can be judged by checker later), reads program output from ouf (mapped to stdin), + * writes output to program via stdout (use cout, printf, etc). + */ + +const char *latestFeatures[] = { + "Added ConstantBoundsLog, VariablesLog to validator testOverviewLogFile", + "Use setAppesModeEncoding to change xml encoding from windows-1251 to other", + "rnd.any/wany use distance/advance instead of -/+: now they support sets/multisets", + "Use syntax `int t = inf.readInt(1, 3, \"~t\");` to skip the lower bound check. Tildes can be used on either side or both: ~t, t~, ~t~", + "Supported EJUDGE support in registerTestlibCmd", + "Supported '--testMarkupFileName fn' and '--testCase tc/--testCaseFileName fn' for validators", + "Added opt defaults via opt(key/index, default_val); check unused opts when using has_opt or default opt (turn off this check with suppressEnsureNoUnusedOpt()).", + "For checker added --group and --testset command line params (like for validator), use checker.group() or checker.testset() to get values", + "Added quitpi(points_info, message) function to return with _points exit code 7 and given points_info", + "rnd.partition(size, sum[, min_part=1]) returns random (unsorted) partition which is a representation of the given `sum` as a sum of `size` positive integers (or >=min_part if specified)", + "rnd.distinct(size, n) and rnd.distinct(size, from, to)", + "opt(\"some_missing_key\") returns false now", + "has_opt(key)", + "Abort validator on validator.testset()/validator.group() if registered without using command line", + "Print integer range violations in a human readable way like `violates the range [1, 10^9]`", + "Opts supported: use them like n = opt(\"n\"), in a command line you can use an exponential notation", + "Reformatted", + "Use setTestCase(i) or unsetTestCase() to support test cases (you can use it in any type of program: generator, interactor, validator or checker)", + "Fixed issue #87: readStrictDouble accepts \"-0.00\"", + "Fixed issue #83: added InStream::quitif(condition, ...)", + "Fixed issue #79: fixed missed guard against repeated header include", + "Fixed issue #80: fixed UB in case of huge quitf message", + "Fixed issue #84: added readXs(size, indexBase = 1)", + "Fixed stringstream repeated usage issue", + "Fixed compilation in g++ (for std=c++03)", + "Batch of println functions (support collections, iterator ranges)", + "Introduced rnd.perm(size, first = 0) to generate a `first`-indexed permutation", + "Allow any whitespace in readInts-like functions for non-validators", + "Ignore 4+ command line arguments ifdef EJUDGE", + "Speed up of vtos", + "Show line number in validators in case of incorrect format", + "Truncate huge checker/validator/interactor message", + "Fixed issue with readTokenTo of very long tokens, now aborts with _pe/_fail depending of a stream type", + "Introduced InStream::ensure/ensuref checking a condition, returns wa/fail depending of a stream type", + "Fixed compilation in VS 2015+", + "Introduced space-separated read functions: readWords/readTokens, multilines read functions: readStrings/readLines", + "Introduced space-separated read functions: readInts/readIntegers/readLongs/readUnsignedLongs/readDoubles/readReals/readStrictDoubles/readStrictReals", + "Introduced split/tokenize functions to separate string by given char", + "Introduced InStream::readUnsignedLong and InStream::readLong with unsigned long long parameters", + "Supported --testOverviewLogFileName for validator: bounds hits + features", + "Fixed UB (sequence points) in random_t", + "POINTS_EXIT_CODE returned back to 7 (instead of 0)", + "Removed disable buffers for interactive problems, because it works unexpectedly in wine", + "InStream over string: constructor of InStream from base InStream to inherit policies and std::string", + "Added expectedButFound quit function, examples: expectedButFound(_wa, 10, 20), expectedButFound(_fail, ja, pa, \"[n=%d,m=%d]\", n, m)", + "Fixed incorrect interval parsing in patterns", + "Use registerGen(argc, argv, 1) to develop new generator, use registerGen(argc, argv, 0) to compile old generators (originally created for testlib under 0.8.7)", + "Introduced disableFinalizeGuard() to switch off finalization checkings", + "Use join() functions to format a range of items as a single string (separated by spaces or other separators)", + "Use -DENABLE_UNEXPECTED_EOF to enable special exit code (by default, 8) in case of unexpected eof. It is good idea to use it in interactors", + "Use -DUSE_RND_AS_BEFORE_087 to compile in compatibility mode with random behavior of versions before 0.8.7", + "Fixed bug with nan in stringToDouble", + "Fixed issue around overloads for size_t on x64", + "Added attribute 'points' to the XML output in case of result=_points", + "Exit codes can be customized via macros, e.g. -DPE_EXIT_CODE=14", + "Introduced InStream function readWordTo/readTokenTo/readStringTo/readLineTo for faster reading", + "Introduced global functions: format(), englishEnding(), upperCase(), lowerCase(), compress()", + "Manual buffer in InStreams, some IO speed improvements", + "Introduced quitif(bool, const char* pattern, ...) which delegates to quitf() in case of first argument is true", + "Introduced guard against missed quitf() in checker or readEof() in validators", + "Supported readStrictReal/readStrictDouble - to use in validators to check strictly float numbers", + "Supported registerInteraction(argc, argv)", + "Print checker message to the stderr instead of stdout", + "Supported TResult _points to output calculated score, use quitp(...) functions", + "Fixed to be compilable on Mac", + "PC_BASE_EXIT_CODE=50 in case of defined TESTSYS", + "Fixed issues 19-21, added __attribute__ format printf", + "Some bug fixes", + "ouf.readInt(1, 100) and similar calls return WA", + "Modified random_t to avoid integer overflow", + "Truncated checker output [patch by Stepan Gatilov]", + "Renamed class random -> class random_t", + "Supported name parameter for read-and-validation methods, like readInt(1, 2, \"n\")", + "Fixed bug in readDouble()", + "Improved ensuref(), fixed nextLine to work in case of EOF, added startTest()", + "Supported \"partially correct\", example: quitf(_pc(13), \"result=%d\", result)", + "Added shuffle(begin, end), use it instead of random_shuffle(begin, end)", + "Added readLine(const string& ptrn), fixed the logic of readLine() in the validation mode", + "Package extended with samples of generators and validators", + "Written the documentation for classes and public methods in testlib.h", + "Implemented random routine to support generators, use registerGen() to switch it on", + "Implemented strict mode to validate tests, use registerValidation() to switch it on", + "Now ncmp.cpp and wcmp.cpp are return WA if answer is suffix or prefix of the output", + "Added InStream::readLong() and removed InStream::readLongint()", + "Now no footer added to each report by default (use directive FOOTER to switch on)", + "Now every checker has a name, use setName(const char* format, ...) to set it", + "Now it is compatible with TTS (by Kittens Computing)", + "Added \'ensure(condition, message = \"\")\' feature, it works like assert()", + "Fixed compatibility with MS C++ 7.1", + "Added footer with exit code information", + "Added compatibility with EJUDGE (compile with EJUDGE directive)", + "Added compatibility with Contester (compile with CONTESTER directive)" +}; + +#ifdef _MSC_VER +#define _CRT_SECURE_NO_DEPRECATE +#define _CRT_SECURE_NO_WARNINGS +#define _CRT_NO_VA_START_VALIDATION +#endif + +/* Overrides random() for Borland C++. */ +#define random __random_deprecated +#include +#include +#include +#include +#undef random + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef TESTLIB_THROW_EXIT_EXCEPTION_INSTEAD_OF_EXIT +# include +#endif + +#if (_WIN32 || __WIN32__ || __WIN32 || _WIN64 || __WIN64__ || __WIN64 || WINNT || __WINNT || __WINNT__ || __CYGWIN__) +# if !defined(_MSC_VER) || _MSC_VER > 1400 +# define NOMINMAX 1 +# include +# else +# define WORD unsigned short +# include +# endif +# include +# define ON_WINDOWS +# if defined(_MSC_VER) && _MSC_VER > 1400 +# pragma warning( disable : 4127 ) +# pragma warning( disable : 4146 ) +# pragma warning( disable : 4458 ) +# endif +#else +# define WORD unsigned short +# include +#endif + +#if defined(FOR_WINDOWS) && defined(FOR_LINUX) +#error Only one target system is allowed +#endif + +#ifndef LLONG_MIN +#define LLONG_MIN (-9223372036854775807LL - 1) +#endif + +#ifndef ULLONG_MAX +#define ULLONG_MAX (18446744073709551615) +#endif + +#define LF ((char)10) +#define CR ((char)13) +#define TAB ((char)9) +#define SPACE ((char)' ') +#define EOFC (255) + +#ifndef OK_EXIT_CODE +# ifdef CONTESTER +# define OK_EXIT_CODE 0xAC +# else +# define OK_EXIT_CODE 0 +# endif +#endif + +#ifndef WA_EXIT_CODE +# ifdef EJUDGE +# define WA_EXIT_CODE 5 +# elif defined(CONTESTER) +# define WA_EXIT_CODE 0xAB +# else +# define WA_EXIT_CODE 1 +# endif +#endif + +#ifndef PE_EXIT_CODE +# ifdef EJUDGE +# define PE_EXIT_CODE 4 +# elif defined(CONTESTER) +# define PE_EXIT_CODE 0xAA +# else +# define PE_EXIT_CODE 2 +# endif +#endif + +#ifndef FAIL_EXIT_CODE +# ifdef EJUDGE +# define FAIL_EXIT_CODE 6 +# elif defined(CONTESTER) +# define FAIL_EXIT_CODE 0xA3 +# else +# define FAIL_EXIT_CODE 3 +# endif +#endif + +#ifndef DIRT_EXIT_CODE +# ifdef EJUDGE +# define DIRT_EXIT_CODE 6 +# else +# define DIRT_EXIT_CODE 4 +# endif +#endif + +#ifndef POINTS_EXIT_CODE +# define POINTS_EXIT_CODE 7 +#endif + +#ifndef UNEXPECTED_EOF_EXIT_CODE +# define UNEXPECTED_EOF_EXIT_CODE 8 +#endif + +#ifndef PC_BASE_EXIT_CODE +# ifdef TESTSYS +# define PC_BASE_EXIT_CODE 50 +# else +# define PC_BASE_EXIT_CODE 0 +# endif +#endif + +#ifdef __GNUC__ +# define __TESTLIB_STATIC_ASSERT(condition) typedef void* __testlib_static_assert_type[(condition) ? 1 : -1] __attribute__((unused)) +#else +# define __TESTLIB_STATIC_ASSERT(condition) typedef void* __testlib_static_assert_type[(condition) ? 1 : -1] +#endif + +#ifdef ON_WINDOWS +#define I64 "%I64d" +#define U64 "%I64u" +#else +#define I64 "%lld" +#define U64 "%llu" +#endif + +#ifdef _MSC_VER +# define NORETURN __declspec(noreturn) +#elif defined __GNUC__ +# define NORETURN __attribute__ ((noreturn)) +#else +# define NORETURN +#endif + +static char __testlib_format_buffer[16777216]; +static int __testlib_format_buffer_usage_count = 0; + +#define FMT_TO_RESULT(fmt, cstr, result) std::string result; \ + if (__testlib_format_buffer_usage_count != 0) \ + __testlib_fail("FMT_TO_RESULT::__testlib_format_buffer_usage_count != 0"); \ + __testlib_format_buffer_usage_count++; \ + va_list ap; \ + va_start(ap, fmt); \ + vsnprintf(__testlib_format_buffer, sizeof(__testlib_format_buffer), cstr, ap); \ + va_end(ap); \ + __testlib_format_buffer[sizeof(__testlib_format_buffer) - 1] = 0; \ + result = std::string(__testlib_format_buffer); \ + __testlib_format_buffer_usage_count--; \ + +#ifdef __GNUC__ +__attribute__ ((format (printf, 1, 2))) +#endif +std::string testlib_format_(const char *fmt, ...); +std::string testlib_format_(const std::string fmt, ...); + +const long long __TESTLIB_LONGLONG_MAX = 9223372036854775807LL; +const int __TESTLIB_MAX_TEST_CASE = 1073741823; + +int __testlib_exitCode; + +bool __testlib_hasTestCase; +int __testlib_testCase = -1; + +void setTestCase(int testCase); + +void unsetTestCase() { + __testlib_hasTestCase = false; + __testlib_testCase = -1; +} + +NORETURN static void __testlib_fail(const std::string &message); + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +static inline T __testlib_abs(const T &x) { + return x > 0 ? x : -x; +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +static inline T __testlib_min(const T &a, const T &b) { + return a < b ? a : b; +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +static inline T __testlib_max(const T &a, const T &b) { + return a > b ? a : b; +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +static inline T __testlib_crop(T value, T a, T b) { + return __testlib_min(__testlib_max(value, a), --b); +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +static inline double __testlib_crop(double value, double a, double b) { + value = __testlib_min(__testlib_max(value, a), b); + if (value >= b) + value = std::nexttoward(b, a); + return value; +} + +static bool __testlib_prelimIsNaN(double r) { + volatile double ra = r; +#ifndef __BORLANDC__ + return ((ra != ra) == true) && ((ra == ra) == false) && ((1.0 > ra) == false) && ((1.0 < ra) == false); +#else + return std::_isnan(ra); +#endif +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +static std::string removeDoubleTrailingZeroes(std::string value) { + while (!value.empty() && value[value.length() - 1] == '0' && value.find('.') != std::string::npos) + value = value.substr(0, value.length() - 1); + if (!value.empty() && value[value.length() - 1] == '.') + return value + '0'; + else + return value; +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline std::string upperCase(std::string s) { + for (size_t i = 0; i < s.length(); i++) + if ('a' <= s[i] && s[i] <= 'z') + s[i] = char(s[i] - 'a' + 'A'); + return s; +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline std::string lowerCase(std::string s) { + for (size_t i = 0; i < s.length(); i++) + if ('A' <= s[i] && s[i] <= 'Z') + s[i] = char(s[i] - 'A' + 'a'); + return s; +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +static std::string __testlib_part(const std::string &s); + +static bool __testlib_isNaN(double r) { + __TESTLIB_STATIC_ASSERT(sizeof(double) == sizeof(long long)); + volatile double ra = r; + long long llr1, llr2; + std::memcpy((void *) &llr1, (void *) &ra, sizeof(double)); + ra = -ra; + std::memcpy((void *) &llr2, (void *) &ra, sizeof(double)); + long long llnan = 0xFFF8000000000000LL; + return __testlib_prelimIsNaN(r) || llnan == llr1 || llnan == llr2; +} + +static double __testlib_nan() { + __TESTLIB_STATIC_ASSERT(sizeof(double) == sizeof(long long)); +#ifndef NAN + long long llnan = 0xFFF8000000000000LL; + double nan; + std::memcpy(&nan, &llnan, sizeof(double)); + return nan; +#else + return NAN; +#endif +} + +static bool __testlib_isInfinite(double r) { + volatile double ra = r; + return (ra > 1E300 || ra < -1E300); +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline bool doubleCompare(double expected, double result, double MAX_DOUBLE_ERROR) { + MAX_DOUBLE_ERROR += 1E-15; + if (__testlib_isNaN(expected)) { + return __testlib_isNaN(result); + } else if (__testlib_isInfinite(expected)) { + if (expected > 0) { + return result > 0 && __testlib_isInfinite(result); + } else { + return result < 0 && __testlib_isInfinite(result); + } + } else if (__testlib_isNaN(result) || __testlib_isInfinite(result)) { + return false; + } else if (__testlib_abs(result - expected) <= MAX_DOUBLE_ERROR) { + return true; + } else { + double minv = __testlib_min(expected * (1.0 - MAX_DOUBLE_ERROR), + expected * (1.0 + MAX_DOUBLE_ERROR)); + double maxv = __testlib_max(expected * (1.0 - MAX_DOUBLE_ERROR), + expected * (1.0 + MAX_DOUBLE_ERROR)); + return result >= minv && result <= maxv; + } +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline double doubleDelta(double expected, double result) { + double absolute = __testlib_abs(result - expected); + + if (__testlib_abs(expected) > 1E-9) { + double relative = __testlib_abs(absolute / expected); + return __testlib_min(absolute, relative); + } else + return absolute; +} + +/** It does nothing on non-windows and files differ from stdin/stdout/stderr. */ +static void __testlib_set_binary(std::FILE *file) { + if (NULL != file) { +#ifdef ON_WINDOWS +# ifdef _O_BINARY + if (stdin == file) +# ifdef STDIN_FILENO + return void(_setmode(STDIN_FILENO, _O_BINARY)); +# else + return void(_setmode(_fileno(stdin), _O_BINARY)); +# endif + if (stdout == file) +# ifdef STDOUT_FILENO + return void(_setmode(STDOUT_FILENO, _O_BINARY)); +# else + return void(_setmode(_fileno(stdout), _O_BINARY)); +# endif + if (stderr == file) +# ifdef STDERR_FILENO + return void(_setmode(STDERR_FILENO, _O_BINARY)); +# else + return void(_setmode(_fileno(stderr), _O_BINARY)); +# endif +# elif O_BINARY + if (stdin == file) +# ifdef STDIN_FILENO + return void(setmode(STDIN_FILENO, O_BINARY)); +# else + return void(setmode(fileno(stdin), O_BINARY)); +# endif + if (stdout == file) +# ifdef STDOUT_FILENO + return void(setmode(STDOUT_FILENO, O_BINARY)); +# else + return void(setmode(fileno(stdout), O_BINARY)); +# endif + if (stderr == file) +# ifdef STDERR_FILENO + return void(setmode(STDERR_FILENO, O_BINARY)); +# else + return void(setmode(fileno(stderr), O_BINARY)); +# endif +# endif +#endif + } +} + +#if __cplusplus > 199711L || defined(_MSC_VER) +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +static std::string vtos(const T &t, std::true_type) { + if (t == 0) + return "0"; + else { + T n(t); + bool negative = n < 0; + std::string s; + while (n != 0) { + T digit = n % 10; + if (digit < 0) + digit = -digit; + s += char('0' + digit); + n /= 10; + } + std::reverse(s.begin(), s.end()); + return negative ? "-" + s : s; + } +} + +template +static std::string vtos(const T &t, std::false_type) { + std::string s; + static std::stringstream ss; + ss.str(std::string()); + ss.clear(); + ss << t; + ss >> s; + return s; +} + +template +static std::string vtos(const T &t) { + return vtos(t, std::is_integral()); +} + +/* signed case. */ +template +static std::string toHumanReadableString(const T &n, std::false_type) { + if (n == 0) + return vtos(n); + int trailingZeroCount = 0; + T n_ = n; + while (n_ % 10 == 0) + n_ /= 10, trailingZeroCount++; + if (trailingZeroCount >= 7) { + if (n_ == 1) + return "10^" + vtos(trailingZeroCount); + else if (n_ == -1) + return "-10^" + vtos(trailingZeroCount); + else + return vtos(n_) + "*10^" + vtos(trailingZeroCount); + } else + return vtos(n); +} + +/* unsigned case. */ +template +static std::string toHumanReadableString(const T &n, std::true_type) { + if (n == 0) + return vtos(n); + int trailingZeroCount = 0; + T n_ = n; + while (n_ % 10 == 0) + n_ /= 10, trailingZeroCount++; + if (trailingZeroCount >= 7) { + if (n_ == 1) + return "10^" + vtos(trailingZeroCount); + else + return vtos(n_) + "*10^" + vtos(trailingZeroCount); + } else + return vtos(n); +} + +template +static std::string toHumanReadableString(const T &n) { + return toHumanReadableString(n, std::is_unsigned()); +} +#else +template +static std::string vtos(const T& t) +{ + std::string s; + static std::stringstream ss; + ss.str(std::string()); + ss.clear(); + ss << t; + ss >> s; + return s; +} + +template +static std::string toHumanReadableString(const T &n) { + return vtos(n); +} +#endif + +template +static std::string toString(const T &t) { + return vtos(t); +} + +#if __cplusplus > 199711L || defined(_MSC_VER) +/* opts */ +void prepareOpts(int argc, char* argv[]); +#endif + +FILE* testlib_fopen_(const char* path, const char* mode) { +#ifdef _MSC_VER + FILE* result = NULL; + if (fopen_s(&result, path, mode) != 0) + return NULL; + else + return result; +#else + return std::fopen(path, mode); +#endif +} + +FILE* testlib_freopen_(const char* path, const char* mode, FILE* file) { +#ifdef _MSC_VER + FILE* result = NULL; + if (freopen_s(&result, path, mode, file) != 0) + return NULL; + else + return result; +#else + return std::freopen(path, mode, file); +#endif +} + +/* + * Very simple regex-like pattern. + * It used for two purposes: validation and generation. + * + * For example, pattern("[a-z]{1,5}").next(rnd) will return + * random string from lowercase latin letters with length + * from 1 to 5. It is easier to call rnd.next("[a-z]{1,5}") + * for the same effect. + * + * Another samples: + * "mike|john" will generate (match) "mike" or "john"; + * "-?[1-9][0-9]{0,3}" will generate (match) non-zero integers from -9999 to 9999; + * "id-([ac]|b{2})" will generate (match) "id-a", "id-bb", "id-c"; + * "[^0-9]*" will match sequences (empty or non-empty) without digits, you can't + * use it for generations. + * + * You can't use pattern for generation if it contains meta-symbol '*'. Also it + * is not recommended to use it for char-sets with meta-symbol '^' like [^a-z]. + * + * For matching very simple greedy algorithm is used. For example, pattern + * "[0-9]?1" will not match "1", because of greedy nature of matching. + * Alternations (meta-symbols "|") are processed with brute-force algorithm, so + * do not use many alternations in one expression. + * + * If you want to use one expression many times it is better to compile it into + * a single pattern like "pattern p("[a-z]+")". Later you can use + * "p.matches(std::string s)" or "p.next(random_t& rd)" to check matching or generate + * new string by pattern. + * + * Simpler way to read token and check it for pattern matching is "inf.readToken("[a-z]+")". + * + * All spaces are ignored in regex, unless escaped with \. For example, ouf.readLine("NO SOLUTION") + * will expect "NOSOLUTION", the correct call should be ouf.readLine("NO\\ SOLUTION") or + * ouf.readLine(R"(NO\ SOLUTION)") if you prefer raw string literals from C++11. + */ +class random_t; + +class pattern { +public: + /* Create pattern instance by string. */ + pattern(std::string s); + + /* Generate new string by pattern and given random_t. */ + std::string next(random_t &rnd) const; + + /* Checks if given string match the pattern. */ + bool matches(const std::string &s) const; + + /* Returns source string of the pattern. */ + std::string src() const; + +private: + bool matches(const std::string &s, size_t pos) const; + + std::string s; + std::vector children; + std::vector chars; + int from; + int to; +}; + +/* + * Use random_t instances to generate random values. It is preferred + * way to use randoms instead of rand() function or self-written + * randoms. + * + * Testlib defines global variable "rnd" of random_t class. + * Use registerGen(argc, argv, 1) to setup random_t seed be command + * line (to use latest random generator version). + * + * Random generates uniformly distributed values if another strategy is + * not specified explicitly. + */ +class random_t { +private: + unsigned long long seed; + static const unsigned long long multiplier; + static const unsigned long long addend; + static const unsigned long long mask; + static const int lim; + + long long nextBits(int bits) { + if (bits <= 48) { + seed = (seed * multiplier + addend) & mask; + return (long long) (seed >> (48 - bits)); + } else { + if (bits > 63) + __testlib_fail("random_t::nextBits(int bits): n must be less than 64"); + + int lowerBitCount = (random_t::version == 0 ? 31 : 32); + + long long left = (nextBits(31) << 32); + long long right = nextBits(lowerBitCount); + + return left ^ right; + } + } + +public: + static int version; + + /* New random_t with fixed seed. */ + random_t() + : seed(3905348978240129619LL) { + } + + /* Sets seed by command line. */ + void setSeed(int argc, char *argv[]) { + random_t p; + + seed = 3905348978240129619LL; + for (int i = 1; i < argc; i++) { + std::size_t le = std::strlen(argv[i]); + for (std::size_t j = 0; j < le; j++) + seed = seed * multiplier + (unsigned int) (argv[i][j]) + addend; + seed += multiplier / addend; + } + + seed = seed & mask; + } + + /* Sets seed by given value. */ + void setSeed(long long _seed) { + seed = (unsigned long long) _seed; + seed = (seed ^ multiplier) & mask; + } + +#ifndef __BORLANDC__ + + /* Random string value by given pattern (see pattern documentation). */ + std::string next(const std::string &ptrn) { + pattern p(ptrn); + return p.next(*this); + } + +#else + /* Random string value by given pattern (see pattern documentation). */ + std::string next(std::string ptrn) + { + pattern p(ptrn); + return p.next(*this); + } +#endif + + /* Random value in range [0, n-1]. */ + int next(int n) { + if (n <= 0) + __testlib_fail("random_t::next(int n): n must be positive"); + + if ((n & -n) == n) // n is a power of 2 + return (int) ((n * (long long) nextBits(31)) >> 31); + + const long long limit = INT_MAX / n * n; + + long long bits; + do { + bits = nextBits(31); + } while (bits >= limit); + + return int(bits % n); + } + + /* Random value in range [0, n-1]. */ + unsigned int next(unsigned int n) { + if (n >= INT_MAX) + __testlib_fail("random_t::next(unsigned int n): n must be less INT_MAX"); + return (unsigned int) next(int(n)); + } + + /* Random value in range [0, n-1]. */ + long long next(long long n) { + if (n <= 0) + __testlib_fail("random_t::next(long long n): n must be positive"); + + const long long limit = __TESTLIB_LONGLONG_MAX / n * n; + + long long bits; + do { + bits = nextBits(63); + } while (bits >= limit); + + return bits % n; + } + + /* Random value in range [0, n-1]. */ + unsigned long long next(unsigned long long n) { + if (n >= (unsigned long long) (__TESTLIB_LONGLONG_MAX)) + __testlib_fail("random_t::next(unsigned long long n): n must be less LONGLONG_MAX"); + return (unsigned long long) next((long long) (n)); + } + + /* Random value in range [0, n-1]. */ + long next(long n) { + return (long) next((long long) (n)); + } + + /* Random value in range [0, n-1]. */ + unsigned long next(unsigned long n) { + if (n >= (unsigned long) (LONG_MAX)) + __testlib_fail("random_t::next(unsigned long n): n must be less LONG_MAX"); + return (unsigned long) next((unsigned long long) (n)); + } + + /* Returns random value in range [from,to]. */ + int next(int from, int to) { + return int(next((long long) to - from + 1) + from); + } + + /* Returns random value in range [from,to]. */ + unsigned int next(unsigned int from, unsigned int to) { + return (unsigned int) (next((long long) to - from + 1) + from); + } + + /* Returns random value in range [from,to]. */ + long long next(long long from, long long to) { + return next(to - from + 1) + from; + } + + /* Returns random value in range [from,to]. */ + unsigned long long next(unsigned long long from, unsigned long long to) { + if (from > to) + __testlib_fail("random_t::next(unsigned long long from, unsigned long long to): from can't not exceed to"); + return next(to - from + 1) + from; + } + + /* Returns random value in range [from,to]. */ + long next(long from, long to) { + return next(to - from + 1) + from; + } + + /* Returns random value in range [from,to]. */ + unsigned long next(unsigned long from, unsigned long to) { + if (from > to) + __testlib_fail("random_t::next(unsigned long from, unsigned long to): from can't not exceed to"); + return next(to - from + 1) + from; + } + + /* Random double value in range [0, 1). */ + double next() { + long long left = ((long long) (nextBits(26)) << 27); + long long right = nextBits(27); + return __testlib_crop((double) (left + right) / (double) (1LL << 53), 0.0, 1.0); + } + + /* Random double value in range [0, n). */ + double next(double n) { + if (n <= 0.0) + __testlib_fail("random_t::next(double): n should be positive"); + return __testlib_crop(n * next(), 0.0, n); + } + + /* Random double value in range [from, to). */ + double next(double from, double to) { + if (from >= to) + __testlib_fail("random_t::next(double from, double to): from should be strictly less than to"); + return next(to - from) + from; + } + + /* Returns random element from container. */ + template + typename Container::value_type any(const Container &c) { + int size = int(c.size()); + if (size <= 0) + __testlib_fail("random_t::any(const Container& c): c.size() must be positive"); + typename Container::const_iterator it = c.begin(); + std::advance(it, next(size)); + return *it; + } + + /* Returns random element from iterator range. */ + template + typename Iter::value_type any(const Iter &begin, const Iter &end) { + int size = static_cast(std::distance(begin, end)); + if (size <= 0) + __testlib_fail("random_t::any(const Iter& begin, const Iter& end): range must have positive length"); + Iter it = begin; + std::advance(it, next(size)); + return *it; + } + + /* Random string value by given pattern (see pattern documentation). */ +#ifdef __GNUC__ + __attribute__ ((format (printf, 2, 3))) +#endif + std::string next(const char *format, ...) { + FMT_TO_RESULT(format, format, ptrn); + return next(ptrn); + } + + /* + * Weighted next. If type == 0 than it is usual "next()". + * + * If type = 1, than it returns "max(next(), next())" + * (the number of "max" functions equals to "type"). + * + * If type < 0, than "max" function replaces with "min". + */ + int wnext(int n, int type) { + if (n <= 0) + __testlib_fail("random_t::wnext(int n, int type): n must be positive"); + + if (abs(type) < random_t::lim) { + int result = next(n); + + for (int i = 0; i < +type; i++) + result = __testlib_max(result, next(n)); + + for (int i = 0; i < -type; i++) + result = __testlib_min(result, next(n)); + + return result; + } else { + double p; + + if (type > 0) + p = std::pow(next() + 0.0, 1.0 / (type + 1)); + else + p = 1 - std::pow(next() + 0.0, 1.0 / (-type + 1)); + + return __testlib_crop((int) (double(n) * p), 0, n); + } + } + + /* See wnext(int, int). It uses the same algorithms. */ + long long wnext(long long n, int type) { + if (n <= 0) + __testlib_fail("random_t::wnext(long long n, int type): n must be positive"); + + if (abs(type) < random_t::lim) { + long long result = next(n); + + for (int i = 0; i < +type; i++) + result = __testlib_max(result, next(n)); + + for (int i = 0; i < -type; i++) + result = __testlib_min(result, next(n)); + + return result; + } else { + double p; + + if (type > 0) + p = std::pow(next() + 0.0, 1.0 / (type + 1)); + else + p = 1 - std::pow(next() + 0.0, 1.0 / (-type + 1)); + + return __testlib_crop((long long) (double(n) * p), 0LL, n); + } + } + + /* Returns value in [0, n). See wnext(int, int). It uses the same algorithms. */ + double wnext(double n, int type) { + if (n <= 0) + __testlib_fail("random_t::wnext(double n, int type): n must be positive"); + + if (abs(type) < random_t::lim) { + double result = next(); + + for (int i = 0; i < +type; i++) + result = __testlib_max(result, next()); + + for (int i = 0; i < -type; i++) + result = __testlib_min(result, next()); + + return n * result; + } else { + double p; + + if (type > 0) + p = std::pow(next() + 0.0, 1.0 / (type + 1)); + else + p = 1 - std::pow(next() + 0.0, 1.0 / (-type + 1)); + + return __testlib_crop(n * p, 0.0, n); + } + } + + /* Returns value in [0, 1). See wnext(int, int). It uses the same algorithms. */ + double wnext(int type) { + return wnext(1.0, type); + } + + /* See wnext(int, int). It uses the same algorithms. */ + unsigned int wnext(unsigned int n, int type) { + if (n >= INT_MAX) + __testlib_fail("random_t::wnext(unsigned int n, int type): n must be less INT_MAX"); + return (unsigned int) wnext(int(n), type); + } + + /* See wnext(int, int). It uses the same algorithms. */ + unsigned long long wnext(unsigned long long n, int type) { + if (n >= (unsigned long long) (__TESTLIB_LONGLONG_MAX)) + __testlib_fail("random_t::wnext(unsigned long long n, int type): n must be less LONGLONG_MAX"); + + return (unsigned long long) wnext((long long) (n), type); + } + + /* See wnext(int, int). It uses the same algorithms. */ + long wnext(long n, int type) { + return (long) wnext((long long) (n), type); + } + + /* See wnext(int, int). It uses the same algorithms. */ + unsigned long wnext(unsigned long n, int type) { + if (n >= (unsigned long) (LONG_MAX)) + __testlib_fail("random_t::wnext(unsigned long n, int type): n must be less LONG_MAX"); + + return (unsigned long) wnext((unsigned long long) (n), type); + } + + /* Returns weighted random value in range [from, to]. */ + int wnext(int from, int to, int type) { + if (from > to) + __testlib_fail("random_t::wnext(int from, int to, int type): from can't not exceed to"); + return wnext(to - from + 1, type) + from; + } + + /* Returns weighted random value in range [from, to]. */ + int wnext(unsigned int from, unsigned int to, int type) { + if (from > to) + __testlib_fail("random_t::wnext(unsigned int from, unsigned int to, int type): from can't not exceed to"); + return int(wnext(to - from + 1, type) + from); + } + + /* Returns weighted random value in range [from, to]. */ + long long wnext(long long from, long long to, int type) { + if (from > to) + __testlib_fail("random_t::wnext(long long from, long long to, int type): from can't not exceed to"); + return wnext(to - from + 1, type) + from; + } + + /* Returns weighted random value in range [from, to]. */ + unsigned long long wnext(unsigned long long from, unsigned long long to, int type) { + if (from > to) + __testlib_fail( + "random_t::wnext(unsigned long long from, unsigned long long to, int type): from can't not exceed to"); + return wnext(to - from + 1, type) + from; + } + + /* Returns weighted random value in range [from, to]. */ + long wnext(long from, long to, int type) { + if (from > to) + __testlib_fail("random_t::wnext(long from, long to, int type): from can't not exceed to"); + return wnext(to - from + 1, type) + from; + } + + /* Returns weighted random value in range [from, to]. */ + unsigned long wnext(unsigned long from, unsigned long to, int type) { + if (from > to) + __testlib_fail("random_t::wnext(unsigned long from, unsigned long to, int type): from can't not exceed to"); + return wnext(to - from + 1, type) + from; + } + + /* Returns weighted random double value in range [from, to). */ + double wnext(double from, double to, int type) { + if (from >= to) + __testlib_fail("random_t::wnext(double from, double to, int type): from should be strictly less than to"); + return wnext(to - from, type) + from; + } + + /* Returns weighted random element from container. */ + template + typename Container::value_type wany(const Container &c, int type) { + int size = int(c.size()); + if (size <= 0) + __testlib_fail("random_t::wany(const Container& c, int type): c.size() must be positive"); + typename Container::const_iterator it = c.begin(); + std::advance(it, wnext(size, type)); + return *it; + } + + /* Returns weighted random element from iterator range. */ + template + typename Iter::value_type wany(const Iter &begin, const Iter &end, int type) { + int size = static_cast(std::distance(begin, end)); + if (size <= 0) + __testlib_fail( + "random_t::any(const Iter& begin, const Iter& end, int type): range must have positive length"); + Iter it = begin; + std::advance(it, wnext(size, type)); + return *it; + } + + /* Returns random permutation of the given size (values are between `first` and `first`+size-1)*/ + template + std::vector perm(T size, E first) { + if (size < 0) + __testlib_fail("random_t::perm(T size, E first = 0): size must non-negative"); + else if (size == 0) + return std::vector(); + std::vector p(size); + E current = first; + for (T i = 0; i < size; i++) + p[i] = current++; + if (size > 1) + for (T i = 1; i < size; i++) + std::swap(p[i], p[next(i + 1)]); + return p; + } + + /* Returns random permutation of the given size (values are between 0 and size-1)*/ + template + std::vector perm(T size) { + return perm(size, T(0)); + } + + /* Returns `size` unordered (unsorted) distinct numbers between `from` and `to`. */ + template + std::vector distinct(int size, T from, T to) { + std::vector result; + if (size == 0) + return result; + + if (from > to) + __testlib_fail("random_t::distinct expected from <= to"); + + if (size < 0) + __testlib_fail("random_t::distinct expected size >= 0"); + + uint64_t n = to - from + 1; + if (uint64_t(size) > n) + __testlib_fail("random_t::distinct expected size <= to - from + 1"); + + double expected = 0.0; + for (int i = 1; i <= size; i++) + expected += double(n) / double(n - i + 1); + + if (expected < double(n)) { + std::set vals; + while (int(vals.size()) < size) { + T x = T(next(from, to)); + if (vals.insert(x).second) + result.push_back(x); + } + } else { + if (n > 1000000000) + __testlib_fail("random_t::distinct here expected to - from + 1 <= 1000000000"); + std::vector p(perm(int(n), from)); + result.insert(result.end(), p.begin(), p.begin() + size); + } + + return result; + } + + /* Returns `size` unordered (unsorted) distinct numbers between `0` and `upper`-1. */ + template + std::vector distinct(int size, T upper) { + if (size < 0) + __testlib_fail("random_t::distinct expected size >= 0"); + if (size == 0) + return std::vector(); + + if (upper <= 0) + __testlib_fail("random_t::distinct expected upper > 0"); + if (size > upper) + __testlib_fail("random_t::distinct expected size <= upper"); + + return distinct(size, T(0), upper - 1); + } + + /* Returns random (unsorted) partition which is a representation of sum as a sum of integers not less than min_part. */ + template + std::vector partition(int size, T sum, T min_part) { + if (size < 0) + __testlib_fail("random_t::partition: size < 0"); + if (size == 0 && sum != 0) + __testlib_fail("random_t::partition: size == 0 && sum != 0"); + if (min_part * size > sum) + __testlib_fail("random_t::partition: min_part * size > sum"); + if (size == 0 && sum == 0) + return std::vector(); + + T sum_ = sum; + sum -= min_part * size; + + std::vector septums(size); + std::vector d = distinct(size - 1, T(1), T(sum + size - 1)); + for (int i = 0; i + 1 < size; i++) + septums[i + 1] = d[i]; + sort(septums.begin(), septums.end()); + + std::vector result(size); + for (int i = 0; i + 1 < size; i++) + result[i] = septums[i + 1] - septums[i] - 1; + result[size - 1] = sum + size - 1 - septums.back(); + + for (std::size_t i = 0; i < result.size(); i++) + result[i] += min_part; + + T result_sum = 0; + for (std::size_t i = 0; i < result.size(); i++) + result_sum += result[i]; + if (result_sum != sum_) + __testlib_fail("random_t::partition: partition sum is expected to be the given sum"); + + if (*std::min_element(result.begin(), result.end()) < min_part) + __testlib_fail("random_t::partition: partition min is expected to be no less than the given min_part"); + + if (int(result.size()) != size || result.size() != (size_t) size) + __testlib_fail("random_t::partition: partition size is expected to be equal to the given size"); + + return result; + } + + /* Returns random (unsorted) partition which is a representation of sum as a sum of positive integers. */ + template + std::vector partition(int size, T sum) { + return partition(size, sum, T(1)); + } +}; + +const int random_t::lim = 25; +const unsigned long long random_t::multiplier = 0x5DEECE66DLL; +const unsigned long long random_t::addend = 0xBLL; +const unsigned long long random_t::mask = (1LL << 48) - 1; +int random_t::version = -1; + +/* Pattern implementation */ +bool pattern::matches(const std::string &s) const { + return matches(s, 0); +} + +static bool __pattern_isSlash(const std::string &s, size_t pos) { + return s[pos] == '\\'; +} + +#ifdef __GNUC__ +__attribute__((pure)) +#endif +static bool __pattern_isCommandChar(const std::string &s, size_t pos, char value) { + if (pos >= s.length()) + return false; + + int slashes = 0; + + int before = int(pos) - 1; + while (before >= 0 && s[before] == '\\') + before--, slashes++; + + return slashes % 2 == 0 && s[pos] == value; +} + +static char __pattern_getChar(const std::string &s, size_t &pos) { + if (__pattern_isSlash(s, pos)) + pos += 2; + else + pos++; + + return s[pos - 1]; +} + +#ifdef __GNUC__ +__attribute__((pure)) +#endif +static int __pattern_greedyMatch(const std::string &s, size_t pos, const std::vector chars) { + int result = 0; + + while (pos < s.length()) { + char c = s[pos++]; + if (!std::binary_search(chars.begin(), chars.end(), c)) + break; + else + result++; + } + + return result; +} + +std::string pattern::src() const { + return s; +} + +bool pattern::matches(const std::string &s, size_t pos) const { + std::string result; + + if (to > 0) { + int size = __pattern_greedyMatch(s, pos, chars); + if (size < from) + return false; + if (size > to) + size = to; + pos += size; + } + + if (children.size() > 0) { + for (size_t child = 0; child < children.size(); child++) + if (children[child].matches(s, pos)) + return true; + return false; + } else + return pos == s.length(); +} + +std::string pattern::next(random_t &rnd) const { + std::string result; + result.reserve(20); + + if (to == INT_MAX) + __testlib_fail("pattern::next(random_t& rnd): can't process character '*' for generation"); + + if (to > 0) { + int count = rnd.next(to - from + 1) + from; + for (int i = 0; i < count; i++) + result += chars[rnd.next(int(chars.size()))]; + } + + if (children.size() > 0) { + int child = rnd.next(int(children.size())); + result += children[child].next(rnd); + } + + return result; +} + +static void __pattern_scanCounts(const std::string &s, size_t &pos, int &from, int &to) { + if (pos >= s.length()) { + from = to = 1; + return; + } + + if (__pattern_isCommandChar(s, pos, '{')) { + std::vector parts; + std::string part; + + pos++; + + while (pos < s.length() && !__pattern_isCommandChar(s, pos, '}')) { + if (__pattern_isCommandChar(s, pos, ',')) + parts.push_back(part), part = "", pos++; + else + part += __pattern_getChar(s, pos); + } + + if (part != "") + parts.push_back(part); + + if (!__pattern_isCommandChar(s, pos, '}')) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + pos++; + + if (parts.size() < 1 || parts.size() > 2) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + std::vector numbers; + + for (size_t i = 0; i < parts.size(); i++) { + if (parts[i].length() == 0) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + int number; +#ifdef _MSC_VER + if (sscanf_s(parts[i].c_str(), "%d", &number) != 1) +#else + if (std::sscanf(parts[i].c_str(), "%d", &number) != 1) +#endif + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + numbers.push_back(number); + } + + if (numbers.size() == 1) + from = to = numbers[0]; + else + from = numbers[0], to = numbers[1]; + + if (from > to) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + } else { + if (__pattern_isCommandChar(s, pos, '?')) { + from = 0, to = 1, pos++; + return; + } + + if (__pattern_isCommandChar(s, pos, '*')) { + from = 0, to = INT_MAX, pos++; + return; + } + + if (__pattern_isCommandChar(s, pos, '+')) { + from = 1, to = INT_MAX, pos++; + return; + } + + from = to = 1; + } +} + +static std::vector __pattern_scanCharSet(const std::string &s, size_t &pos) { + if (pos >= s.length()) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + std::vector result; + + if (__pattern_isCommandChar(s, pos, '[')) { + pos++; + bool negative = __pattern_isCommandChar(s, pos, '^'); + if (negative) + pos++; + + char prev = 0; + + while (pos < s.length() && !__pattern_isCommandChar(s, pos, ']')) { + if (__pattern_isCommandChar(s, pos, '-') && prev != 0) { + pos++; + + if (pos + 1 == s.length() || __pattern_isCommandChar(s, pos, ']')) { + result.push_back(prev); + prev = '-'; + continue; + } + + char next = __pattern_getChar(s, pos); + if (prev > next) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + for (char c = prev; c != next; c++) + result.push_back(c); + result.push_back(next); + + prev = 0; + } else { + if (prev != 0) + result.push_back(prev); + prev = __pattern_getChar(s, pos); + } + } + + if (prev != 0) + result.push_back(prev); + + if (!__pattern_isCommandChar(s, pos, ']')) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + pos++; + + if (negative) { + std::sort(result.begin(), result.end()); + std::vector actuals; + for (int code = 0; code < 255; code++) { + char c = char(code); + if (!std::binary_search(result.begin(), result.end(), c)) + actuals.push_back(c); + } + result = actuals; + } + + std::sort(result.begin(), result.end()); + } else + result.push_back(__pattern_getChar(s, pos)); + + return result; +} + +pattern::pattern(std::string s) : s(s), from(0), to(0) { + std::string t; + for (size_t i = 0; i < s.length(); i++) + if (!__pattern_isCommandChar(s, i, ' ')) + t += s[i]; + s = t; + + int opened = 0; + int firstClose = -1; + std::vector seps; + + for (size_t i = 0; i < s.length(); i++) { + if (__pattern_isCommandChar(s, i, '(')) { + opened++; + continue; + } + + if (__pattern_isCommandChar(s, i, ')')) { + opened--; + if (opened == 0 && firstClose == -1) + firstClose = int(i); + continue; + } + + if (opened < 0) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + if (__pattern_isCommandChar(s, i, '|') && opened == 0) + seps.push_back(int(i)); + } + + if (opened != 0) + __testlib_fail("pattern: Illegal pattern (or part) \"" + s + "\""); + + if (seps.size() == 0 && firstClose + 1 == (int) s.length() + && __pattern_isCommandChar(s, 0, '(') && __pattern_isCommandChar(s, s.length() - 1, ')')) { + children.push_back(pattern(s.substr(1, s.length() - 2))); + } else { + if (seps.size() > 0) { + seps.push_back(int(s.length())); + int last = 0; + + for (size_t i = 0; i < seps.size(); i++) { + children.push_back(pattern(s.substr(last, seps[i] - last))); + last = seps[i] + 1; + } + } else { + size_t pos = 0; + chars = __pattern_scanCharSet(s, pos); + __pattern_scanCounts(s, pos, from, to); + if (pos < s.length()) + children.push_back(pattern(s.substr(pos))); + } + } +} + +/* End of pattern implementation */ + +template +inline bool isEof(C c) { + return c == EOFC; +} + +template +inline bool isEoln(C c) { + return (c == LF || c == CR); +} + +template +inline bool isBlanks(C c) { + return (c == LF || c == CR || c == SPACE || c == TAB); +} + +inline std::string trim(const std::string &s) { + if (s.empty()) + return s; + + int left = 0; + while (left < int(s.length()) && isBlanks(s[left])) + left++; + if (left >= int(s.length())) + return ""; + + int right = int(s.length()) - 1; + while (right >= 0 && isBlanks(s[right])) + right--; + if (right < 0) + return ""; + + return s.substr(left, right - left + 1); +} + +enum TMode { + _input, _output, _answer +}; + +/* Outcomes 6-15 are reserved for future use. */ +enum TResult { + _ok = 0, + _wa = 1, + _pe = 2, + _fail = 3, + _dirt = 4, + _points = 5, + _unexpected_eof = 8, + _partially = 16 +}; + +enum TTestlibMode { + _unknown, _checker, _validator, _generator, _interactor, _scorer +}; + +#define _pc(exitCode) (TResult(_partially + (exitCode))) + +/* Outcomes 6-15 are reserved for future use. */ +const std::string outcomes[] = { + "accepted", + "wrong-answer", + "presentation-error", + "fail", + "fail", +#ifndef PCMS2 + "points", +#else + "relative-scoring", +#endif + "reserved", + "reserved", + "unexpected-eof", + "reserved", + "reserved", + "reserved", + "reserved", + "reserved", + "reserved", + "reserved", + "partially-correct" +}; + +class InputStreamReader { +public: + virtual void setTestCase(int testCase) = 0; + + virtual std::vector getReadChars() = 0; + + virtual int curChar() = 0; + + virtual int nextChar() = 0; + + virtual void skipChar() = 0; + + virtual void unreadChar(int c) = 0; + + virtual std::string getName() = 0; + + virtual bool eof() = 0; + + virtual void close() = 0; + + virtual int getLine() = 0; + + virtual ~InputStreamReader() = 0; +}; + +InputStreamReader::~InputStreamReader() { + // No operations. +} + +class StringInputStreamReader : public InputStreamReader { +private: + std::string s; + size_t pos; + +public: + StringInputStreamReader(const std::string &content) : s(content), pos(0) { + // No operations. + } + + void setTestCase(int) { + __testlib_fail("setTestCase not implemented in StringInputStreamReader"); + } + + std::vector getReadChars() { + __testlib_fail("getReadChars not implemented in StringInputStreamReader"); + } + + int curChar() { + if (pos >= s.length()) + return EOFC; + else + return s[pos]; + } + + int nextChar() { + if (pos >= s.length()) { + pos++; + return EOFC; + } else + return s[pos++]; + } + + void skipChar() { + pos++; + } + + void unreadChar(int c) { + if (pos == 0) + __testlib_fail("StringInputStreamReader::unreadChar(int): pos == 0."); + pos--; + if (pos < s.length()) + s[pos] = char(c); + } + + std::string getName() { + return __testlib_part(s); + } + + int getLine() { + return -1; + } + + bool eof() { + return pos >= s.length(); + } + + void close() { + // No operations. + } +}; + +class FileInputStreamReader : public InputStreamReader { +private: + std::FILE *file; + std::string name; + int line; + std::vector undoChars; + std::vector readChars; + std::vector undoReadChars; + + inline int postprocessGetc(int getcResult) { + if (getcResult != EOF) + return getcResult; + else + return EOFC; + } + + int getc(FILE *file) { + int c; + int rc; + + if (undoChars.empty()) { + c = rc = ::getc(file); + } else { + c = undoChars.back(); + undoChars.pop_back(); + rc = undoReadChars.back(); + undoReadChars.pop_back(); + } + + if (c == LF) + line++; + + readChars.push_back(rc); + return c; + } + + int ungetc(int c/*, FILE* file*/) { + if (!readChars.empty()) { + undoReadChars.push_back(readChars.back()); + readChars.pop_back(); + } + if (c == LF) + line--; + undoChars.push_back(c); + return c; + } + +public: + FileInputStreamReader(std::FILE *file, const std::string &name) : file(file), name(name), line(1) { + // No operations. + } + + void setTestCase(int testCase) { + if (testCase < 0 || testCase > __TESTLIB_MAX_TEST_CASE) + __testlib_fail(testlib_format_("testCase expected fit in [1,%d], but %d doesn't", __TESTLIB_MAX_TEST_CASE, testCase)); + readChars.push_back(testCase + 256); + } + + std::vector getReadChars() { + return readChars; + } + + int curChar() { + if (feof(file)) + return EOFC; + else { + int c = getc(file); + ungetc(c/*, file*/); + return postprocessGetc(c); + } + } + + int nextChar() { + if (feof(file)) + return EOFC; + else + return postprocessGetc(getc(file)); + } + + void skipChar() { + getc(file); + } + + void unreadChar(int c) { + ungetc(c/*, file*/); + } + + std::string getName() { + return name; + } + + int getLine() { + return line; + } + + bool eof() { + if (NULL == file || feof(file)) + return true; + else { + int c = nextChar(); + if (c == EOFC || (c == EOF && feof(file))) + return true; + unreadChar(c); + return false; + } + } + + void close() { + if (NULL != file) { + fclose(file); + file = NULL; + } + } +}; + +class BufferedFileInputStreamReader : public InputStreamReader { +private: + static const size_t BUFFER_SIZE; + static const size_t MAX_UNREAD_COUNT; + + std::FILE *file; + std::string name; + int line; + + char *buffer; + bool *isEof; + int bufferPos; + size_t bufferSize; + + bool refill() { + if (NULL == file) + __testlib_fail("BufferedFileInputStreamReader: file == NULL (" + getName() + ")"); + + if (bufferPos >= int(bufferSize)) { + size_t readSize = fread( + buffer + MAX_UNREAD_COUNT, + 1, + BUFFER_SIZE - MAX_UNREAD_COUNT, + file + ); + + if (readSize < BUFFER_SIZE - MAX_UNREAD_COUNT + && ferror(file)) + __testlib_fail("BufferedFileInputStreamReader: unable to read (" + getName() + ")"); + + bufferSize = MAX_UNREAD_COUNT + readSize; + bufferPos = int(MAX_UNREAD_COUNT); + std::memset(isEof + MAX_UNREAD_COUNT, 0, sizeof(isEof[0]) * readSize); + + return readSize > 0; + } else + return true; + } + + char increment() { + char c; + if ((c = buffer[bufferPos++]) == LF) + line++; + return c; + } + +public: + BufferedFileInputStreamReader(std::FILE *file, const std::string &name) : file(file), name(name), line(1) { + buffer = new char[BUFFER_SIZE]; + isEof = new bool[BUFFER_SIZE]; + bufferSize = MAX_UNREAD_COUNT; + bufferPos = int(MAX_UNREAD_COUNT); + } + + ~BufferedFileInputStreamReader() { + if (NULL != buffer) { + delete[] buffer; + buffer = NULL; + } + if (NULL != isEof) { + delete[] isEof; + isEof = NULL; + } + } + + void setTestCase(int) { + __testlib_fail("setTestCase not implemented in BufferedFileInputStreamReader"); + } + + std::vector getReadChars() { + __testlib_fail("getReadChars not implemented in BufferedFileInputStreamReader"); + } + + int curChar() { + if (!refill()) + return EOFC; + + return isEof[bufferPos] ? EOFC : buffer[bufferPos]; + } + + int nextChar() { + if (!refill()) + return EOFC; + + return isEof[bufferPos] ? EOFC : increment(); + } + + void skipChar() { + increment(); + } + + void unreadChar(int c) { + bufferPos--; + if (bufferPos < 0) + __testlib_fail("BufferedFileInputStreamReader::unreadChar(int): bufferPos < 0"); + isEof[bufferPos] = (c == EOFC); + buffer[bufferPos] = char(c); + if (c == LF) + line--; + } + + std::string getName() { + return name; + } + + int getLine() { + return line; + } + + bool eof() { + return !refill() || EOFC == curChar(); + } + + void close() { + if (NULL != file) { + fclose(file); + file = NULL; + } + } +}; + +const size_t BufferedFileInputStreamReader::BUFFER_SIZE = 2000000; +const size_t BufferedFileInputStreamReader::MAX_UNREAD_COUNT = BufferedFileInputStreamReader::BUFFER_SIZE / 2; + +/* + * Streams to be used for reading data in checkers or validators. + * Each read*() method moves pointer to the next character after the + * read value. + */ +struct InStream { + /* Do not use them. */ + InStream(); + + ~InStream(); + + /* Wrap std::string with InStream. */ + InStream(const InStream &baseStream, std::string content); + + InputStreamReader *reader; + int lastLine; + + std::string name; + TMode mode; + bool opened; + bool stdfile; + bool strict; + + int wordReserveSize; + std::string _tmpReadToken; + + int readManyIteration; + size_t maxFileSize; + size_t maxTokenLength; + size_t maxMessageLength; + + void init(std::string fileName, TMode mode); + + void init(std::FILE *f, TMode mode); + + void setTestCase(int testCase); + std::vector getReadChars(); + + /* Moves stream pointer to the first non-white-space character or EOF. */ + void skipBlanks(); + + /* Returns current character in the stream. Doesn't remove it from stream. */ + char curChar(); + + /* Moves stream pointer one character forward. */ + void skipChar(); + + /* Returns current character and moves pointer one character forward. */ + char nextChar(); + + /* Returns current character and moves pointer one character forward. */ + char readChar(); + + /* As "readChar()" but ensures that the result is equal to given parameter. */ + char readChar(char c); + + /* As "readChar()" but ensures that the result is equal to the space (code=32). */ + char readSpace(); + + /* Puts back the character into the stream. */ + void unreadChar(char c); + + /* Reopens stream, you should not use it. */ + void reset(std::FILE *file = NULL); + + /* Checks that current position is EOF. If not it doesn't move stream pointer. */ + bool eof(); + + /* Moves pointer to the first non-white-space character and calls "eof()". */ + bool seekEof(); + + /* + * Checks that current position contains EOLN. + * If not it doesn't move stream pointer. + * In strict mode expects "#13#10" for windows or "#10" for other platforms. + */ + bool eoln(); + + /* Moves pointer to the first non-space and non-tab character and calls "eoln()". */ + bool seekEoln(); + + /* Moves stream pointer to the first character of the next line (if exists). */ + void nextLine(); + + /* + * Reads new token. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + std::string readWord(); + + /* The same as "readWord()", it is preferred to use "readToken()". */ + std::string readToken(); + + /* The same as "readWord()", but ensures that token matches to given pattern. */ + std::string readWord(const std::string &ptrn, const std::string &variableName = ""); + + std::string readWord(const pattern &p, const std::string &variableName = ""); + + std::vector + readWords(int size, const std::string &ptrn, const std::string &variablesName = "", int indexBase = 1); + + std::vector + readWords(int size, const pattern &p, const std::string &variablesName = "", int indexBase = 1); + + std::vector readWords(int size, int indexBase = 1); + + /* The same as "readToken()", but ensures that token matches to given pattern. */ + std::string readToken(const std::string &ptrn, const std::string &variableName = ""); + + std::string readToken(const pattern &p, const std::string &variableName = ""); + + std::vector + readTokens(int size, const std::string &ptrn, const std::string &variablesName = "", int indexBase = 1); + + std::vector + readTokens(int size, const pattern &p, const std::string &variablesName = "", int indexBase = 1); + + std::vector readTokens(int size, int indexBase = 1); + + void readWordTo(std::string &result); + + void readWordTo(std::string &result, const pattern &p, const std::string &variableName = ""); + + void readWordTo(std::string &result, const std::string &ptrn, const std::string &variableName = ""); + + void readTokenTo(std::string &result); + + void readTokenTo(std::string &result, const pattern &p, const std::string &variableName = ""); + + void readTokenTo(std::string &result, const std::string &ptrn, const std::string &variableName = ""); + + /* + * Reads new long long value. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + long long readLong(); + + unsigned long long readUnsignedLong(); + + /* + * Reads new int. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + int readInteger(); + + /* + * Reads new int. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + int readInt(); + + /* As "readLong()" but ensures that value in the range [minv,maxv]. */ + long long readLong(long long minv, long long maxv, const std::string &variableName = ""); + + /* Reads space-separated sequence of long longs. */ + std::vector + readLongs(int size, long long minv, long long maxv, const std::string &variablesName = "", int indexBase = 1); + + /* Reads space-separated sequence of long longs. */ + std::vector readLongs(int size, int indexBase = 1); + + unsigned long long + readUnsignedLong(unsigned long long minv, unsigned long long maxv, const std::string &variableName = ""); + + std::vector + readUnsignedLongs(int size, unsigned long long minv, unsigned long long maxv, const std::string &variablesName = "", + int indexBase = 1); + + std::vector readUnsignedLongs(int size, int indexBase = 1); + + unsigned long long readLong(unsigned long long minv, unsigned long long maxv, const std::string &variableName = ""); + + std::vector + readLongs(int size, unsigned long long minv, unsigned long long maxv, const std::string &variablesName = "", + int indexBase = 1); + + /* As "readInteger()" but ensures that value in the range [minv,maxv]. */ + int readInteger(int minv, int maxv, const std::string &variableName = ""); + + /* As "readInt()" but ensures that value in the range [minv,maxv]. */ + int readInt(int minv, int maxv, const std::string &variableName = ""); + + /* Reads space-separated sequence of integers. */ + std::vector + readIntegers(int size, int minv, int maxv, const std::string &variablesName = "", int indexBase = 1); + + /* Reads space-separated sequence of integers. */ + std::vector readIntegers(int size, int indexBase = 1); + + /* Reads space-separated sequence of integers. */ + std::vector readInts(int size, int minv, int maxv, const std::string &variablesName = "", int indexBase = 1); + + /* Reads space-separated sequence of integers. */ + std::vector readInts(int size, int indexBase = 1); + + /* + * Reads new double. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + double readReal(); + + /* + * Reads new double. Ignores white-spaces into the non-strict mode + * (strict mode is used in validators usually). + */ + double readDouble(); + + /* As "readReal()" but ensures that value in the range [minv,maxv]. */ + double readReal(double minv, double maxv, const std::string &variableName = ""); + + std::vector + readReals(int size, double minv, double maxv, const std::string &variablesName = "", int indexBase = 1); + + std::vector readReals(int size, int indexBase = 1); + + /* As "readDouble()" but ensures that value in the range [minv,maxv]. */ + double readDouble(double minv, double maxv, const std::string &variableName = ""); + + std::vector + readDoubles(int size, double minv, double maxv, const std::string &variablesName = "", int indexBase = 1); + + std::vector readDoubles(int size, int indexBase = 1); + + /* + * As "readReal()" but ensures that value in the range [minv,maxv] and + * number of digit after the decimal point is in range [minAfterPointDigitCount,maxAfterPointDigitCount] + * and number is in the form "[-]digit(s)[.digit(s)]". + */ + double readStrictReal(double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variableName = ""); + + std::vector readStrictReals(int size, double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variablesName = "", int indexBase = 1); + + /* + * As "readDouble()" but ensures that value in the range [minv,maxv] and + * number of digit after the decimal point is in range [minAfterPointDigitCount,maxAfterPointDigitCount] + * and number is in the form "[-]digit(s)[.digit(s)]". + */ + double readStrictDouble(double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variableName = ""); + + std::vector readStrictDoubles(int size, double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variablesName = "", int indexBase = 1); + + /* As readLine(). */ + std::string readString(); + + /* Read many lines. */ + std::vector readStrings(int size, int indexBase = 1); + + /* See readLine(). */ + void readStringTo(std::string &result); + + /* The same as "readLine()/readString()", but ensures that line matches to the given pattern. */ + std::string readString(const pattern &p, const std::string &variableName = ""); + + /* The same as "readLine()/readString()", but ensures that line matches to the given pattern. */ + std::string readString(const std::string &ptrn, const std::string &variableName = ""); + + /* Read many lines. */ + std::vector + readStrings(int size, const pattern &p, const std::string &variableName = "", int indexBase = 1); + + /* Read many lines. */ + std::vector + readStrings(int size, const std::string &ptrn, const std::string &variableName = "", int indexBase = 1); + + /* The same as "readLine()/readString()", but ensures that line matches to the given pattern. */ + void readStringTo(std::string &result, const pattern &p, const std::string &variableName = ""); + + /* The same as "readLine()/readString()", but ensures that line matches to the given pattern. */ + void readStringTo(std::string &result, const std::string &ptrn, const std::string &variableName = ""); + + /* + * Reads line from the current position to EOLN or EOF. Moves stream pointer to + * the first character of the new line (if possible). + */ + std::string readLine(); + + /* Read many lines. */ + std::vector readLines(int size, int indexBase = 1); + + /* See readLine(). */ + void readLineTo(std::string &result); + + /* The same as "readLine()", but ensures that line matches to the given pattern. */ + std::string readLine(const pattern &p, const std::string &variableName = ""); + + /* The same as "readLine()", but ensures that line matches to the given pattern. */ + std::string readLine(const std::string &ptrn, const std::string &variableName = ""); + + /* Read many lines. */ + std::vector + readLines(int size, const pattern &p, const std::string &variableName = "", int indexBase = 1); + + /* Read many lines. */ + std::vector + readLines(int size, const std::string &ptrn, const std::string &variableName = "", int indexBase = 1); + + /* The same as "readLine()", but ensures that line matches to the given pattern. */ + void readLineTo(std::string &result, const pattern &p, const std::string &variableName = ""); + + /* The same as "readLine()", but ensures that line matches to the given pattern. */ + void readLineTo(std::string &result, const std::string &ptrn, const std::string &variableName = ""); + + /* Reads EOLN or fails. Use it in validators. Calls "eoln()" method internally. */ + void readEoln(); + + /* Reads EOF or fails. Use it in validators. Calls "eof()" method internally. */ + void readEof(); + + /* + * Quit-functions aborts program with and : + * input/answer streams replace any result to FAIL. + */ + NORETURN void quit(TResult result, const char *msg); + /* + * Quit-functions aborts program with and : + * input/answer streams replace any result to FAIL. + */ + NORETURN void quitf(TResult result, const char *msg, ...); + + /* + * Quit-functions aborts program with and : + * input/answer streams replace any result to FAIL. + */ + void quitif(bool condition, TResult result, const char *msg, ...); + /* + * Quit-functions aborts program with and : + * input/answer streams replace any result to FAIL. + */ + NORETURN void quits(TResult result, std::string msg); + + /* + * Checks condition and aborts a program if condition is false. + * Returns _wa for ouf and _fail on any other streams. + */ +#ifdef __GNUC__ + __attribute__ ((format (printf, 3, 4))) +#endif + void ensuref(bool cond, const char *format, ...); + + void __testlib_ensure(bool cond, std::string message); + + void close(); + + const static int NO_INDEX = INT_MAX; + const static char OPEN_BRACKET = char(11); + const static char CLOSE_BRACKET = char(17); + + const static WORD LightGray = 0x07; + const static WORD LightRed = 0x0c; + const static WORD LightCyan = 0x0b; + const static WORD LightGreen = 0x0a; + const static WORD LightYellow = 0x0e; + + static void textColor(WORD color); + + static void quitscr(WORD color, const char *msg); + + static void quitscrS(WORD color, std::string msg); + + void xmlSafeWrite(std::FILE *file, const char *msg); + + /* Skips UTF-8 Byte Order Mark. */ + void skipBom(); + +private: + InStream(const InStream &); + + InStream &operator=(const InStream &); +}; + +InStream inf; +InStream ouf; +InStream ans; +bool appesMode; +std::string appesModeEncoding = "windows-1251"; +std::string resultName; +std::string checkerName = "untitled checker"; +random_t rnd; +TTestlibMode testlibMode = _unknown; +double __testlib_points = std::numeric_limits::infinity(); + +const size_t VALIDATOR_MAX_VARIABLE_COUNT = 255; + +struct ValidatorBoundsHit { + static const double EPS; + bool minHit; + bool maxHit; + + ValidatorBoundsHit(bool minHit = false, bool maxHit = false) : minHit(minHit), maxHit(maxHit) { + }; + + ValidatorBoundsHit merge(const ValidatorBoundsHit &validatorBoundsHit, bool ignoreMinBound, bool ignoreMaxBound) { + return ValidatorBoundsHit( + __testlib_max(minHit, validatorBoundsHit.minHit) || ignoreMinBound, + __testlib_max(maxHit, validatorBoundsHit.maxHit) || ignoreMaxBound + ); + } +}; + +struct ConstantBound { + std::string value; + bool broken; + + template + void adjust(T t) { + std::string t_string = std::to_string(t); + if (t_string.length() >= 32) { + broken = true; + value = ""; + } else { + if (!broken && value.empty()) + value = t_string; + if (!broken && value != t_string) { + broken = true; + value = ""; + } + } + } + + bool has_value() { + return !value.empty() && !broken && value.length() < 32; + } +}; + +struct ConstantBounds { + ConstantBound lowerBound; + ConstantBound upperBound; +}; + +const double ValidatorBoundsHit::EPS = 1E-12; + +class Validator { +private: + const static std::string TEST_MARKUP_HEADER; + const static std::string TEST_CASE_OPEN_TAG; + const static std::string TEST_CASE_CLOSE_TAG; + + bool _initialized; + std::string _testset; + std::string _group; + + std::string _testOverviewLogFileName; + std::string _testMarkupFileName; + int _testCase = -1; + std::string _testCaseFileName; + + std::map _boundsHitByVariableName; + std::map _constantBoundsByVariableName; + std::set _features; + std::set _hitFeatures; + std::set _variables; + + bool isVariableNameBoundsAnalyzable(const std::string &variableName) { + for (size_t i = 0; i < variableName.length(); i++) + if ((variableName[i] >= '0' && variableName[i] <= '9') || variableName[i] < ' ') + return false; + return true; + } + + bool isFeatureNameAnalyzable(const std::string &featureName) { + for (size_t i = 0; i < featureName.length(); i++) + if (featureName[i] < ' ') + return false; + return true; + } + +public: + Validator() : _initialized(false), _testset("tests"), _group() { + } + + void initialize() { + _initialized = true; + } + + std::string testset() const { + if (!_initialized) + __testlib_fail("Validator should be initialized with registerValidation(argc, argv) instead of registerValidation() to support validator.testset()"); + return _testset; + } + + std::string group() const { + if (!_initialized) + __testlib_fail("Validator should be initialized with registerValidation(argc, argv) instead of registerValidation() to support validator.group()"); + return _group; + } + + std::string testOverviewLogFileName() const { + return _testOverviewLogFileName; + } + + std::string testMarkupFileName() const { + return _testMarkupFileName; + } + + int testCase() const { + return _testCase; + } + + std::string testCaseFileName() const { + return _testCaseFileName; + } + + void setTestset(const char *const testset) { + _testset = testset; + } + + void setGroup(const char *const group) { + _group = group; + } + + void setTestOverviewLogFileName(const char *const testOverviewLogFileName) { + _testOverviewLogFileName = testOverviewLogFileName; + } + + void setTestMarkupFileName(const char *const testMarkupFileName) { + _testMarkupFileName = testMarkupFileName; + } + + void setTestCase(int testCase) { + _testCase = testCase; + } + + void setTestCaseFileName(const char *const testCaseFileName) { + _testCaseFileName = testCaseFileName; + } + + std::string prepVariableName(const std::string &variableName) { + if (variableName.length() >= 2 && variableName != "~~") { + if (variableName[0] == '~' && variableName.back() != '~') + return variableName.substr(1); + if (variableName[0] != '~' && variableName.back() == '~') + return variableName.substr(0, variableName.length() - 1); + if (variableName[0] == '~' && variableName.back() == '~') + return variableName.substr(1, variableName.length() - 2); + } + return variableName; + } + + bool ignoreMinBound(const std::string &variableName) { + return variableName.length() >= 2 && variableName != "~~" && variableName[0] == '~'; + } + + bool ignoreMaxBound(const std::string &variableName) { + return variableName.length() >= 2 && variableName != "~~" && variableName.back() == '~'; + } + + void addBoundsHit(const std::string &variableName, ValidatorBoundsHit boundsHit) { + if (isVariableNameBoundsAnalyzable(variableName) + && _boundsHitByVariableName.size() < VALIDATOR_MAX_VARIABLE_COUNT) { + std::string preparedVariableName = prepVariableName(variableName); + _boundsHitByVariableName[preparedVariableName] = boundsHit.merge(_boundsHitByVariableName[preparedVariableName], + ignoreMinBound(variableName), ignoreMaxBound(variableName)); + } + } + + void addVariable(const std::string &variableName) { + if (isVariableNameBoundsAnalyzable(variableName) + && _variables.size() < VALIDATOR_MAX_VARIABLE_COUNT) { + std::string preparedVariableName = prepVariableName(variableName); + _variables.insert(preparedVariableName); + } + } + + std::string getVariablesLog() { + std::string result; + for (const std::string &variableName: _variables) + result += "variable \"" + variableName + "\"\n"; + return result; + } + + template + void adjustConstantBounds(const std::string &variableName, T lower, T upper) { + if (isVariableNameBoundsAnalyzable(variableName) + && _constantBoundsByVariableName.size() < VALIDATOR_MAX_VARIABLE_COUNT) { + std::string preparedVariableName = prepVariableName(variableName); + _constantBoundsByVariableName[preparedVariableName].lowerBound.adjust(lower); + _constantBoundsByVariableName[preparedVariableName].upperBound.adjust(upper); + } + } + + std::string getBoundsHitLog() { + std::string result; + for (std::map::iterator i = _boundsHitByVariableName.begin(); + i != _boundsHitByVariableName.end(); + i++) { + result += "\"" + i->first + "\":"; + if (i->second.minHit) + result += " min-value-hit"; + if (i->second.maxHit) + result += " max-value-hit"; + result += "\n"; + } + return result; + } + + std::string getConstantBoundsLog() { + std::string result; + for (std::map::iterator i = _constantBoundsByVariableName.begin(); + i != _constantBoundsByVariableName.end(); + i++) { + if (i->second.lowerBound.has_value() || i->second.upperBound.has_value()) { + result += "constant-bounds \"" + i->first + "\":"; + if (i->second.lowerBound.has_value()) + result += " " + i->second.lowerBound.value; + else + result += " ?"; + if (i->second.upperBound.has_value()) + result += " " + i->second.upperBound.value; + else + result += " ?"; + result += "\n"; + } + } + return result; + } + + std::string getFeaturesLog() { + std::string result; + for (std::set::iterator i = _features.begin(); + i != _features.end(); + i++) { + result += "feature \"" + *i + "\":"; + if (_hitFeatures.count(*i)) + result += " hit"; + result += "\n"; + } + return result; + } + + void writeTestOverviewLog() { + if (!_testOverviewLogFileName.empty()) { + std::string fileName(_testOverviewLogFileName); + _testOverviewLogFileName = ""; + + FILE* f; + bool standard_file = false; + if (fileName == "stdout") + f = stdout, standard_file = true; + else if (fileName == "stderr") + f = stderr, standard_file = true; + else { + f = testlib_fopen_(fileName.c_str(), "wb"); + if (NULL == f) + __testlib_fail("Validator::writeTestOverviewLog: can't write test overview log to (" + fileName + ")"); + } + fprintf(f, "%s%s%s%s", + getBoundsHitLog().c_str(), + getFeaturesLog().c_str(), + getConstantBoundsLog().c_str(), + getVariablesLog().c_str()); + std::fflush(f); + if (!standard_file) + if (std::fclose(f)) + __testlib_fail("Validator::writeTestOverviewLog: can't close test overview log file (" + fileName + ")"); + } + } + + void writeTestMarkup() { + if (!_testMarkupFileName.empty()) { + std::vector readChars = inf.getReadChars(); + if (!readChars.empty()) { + std::string markup(TEST_MARKUP_HEADER); + for (size_t i = 0; i < readChars.size(); i++) { + int c = readChars[i]; + if (i + 1 == readChars.size() && c == -1) + continue; + if (c <= 256) { + char cc = char(c); + if (cc == '\\' || cc == '!') + markup += '\\'; + markup += cc; + } else { + markup += TEST_CASE_OPEN_TAG; + markup += toString(c - 256); + markup += TEST_CASE_CLOSE_TAG; + } + } + FILE* f; + bool standard_file = false; + if (_testMarkupFileName == "stdout") + f = stdout, standard_file = true; + else if (_testMarkupFileName == "stderr") + f = stderr, standard_file = true; + else { + f = testlib_fopen_(_testMarkupFileName.c_str(), "wb"); + if (NULL == f) + __testlib_fail("Validator::writeTestMarkup: can't write test markup to (" + _testMarkupFileName + ")"); + } + std::fprintf(f, "%s", markup.c_str()); + std::fflush(f); + if (!standard_file) + if (std::fclose(f)) + __testlib_fail("Validator::writeTestMarkup: can't close test markup file (" + _testCaseFileName + ")"); + } + } + } + + void writeTestCase() { + if (_testCase > 0) { + std::vector readChars = inf.getReadChars(); + if (!readChars.empty()) { + std::string content, testCaseContent; + bool matchedTestCase = false; + for (size_t i = 0; i < readChars.size(); i++) { + int c = readChars[i]; + if (i + 1 == readChars.size() && c == -1) + continue; + if (c <= 256) + content += char(c); + else { + if (matchedTestCase) { + testCaseContent = content; + matchedTestCase = false; + } + content = ""; + int testCase = c - 256; + if (testCase == _testCase) + matchedTestCase = true; + } + } + if (matchedTestCase) + testCaseContent = content; + + if (!testCaseContent.empty()) { + FILE* f; + bool standard_file = false; + if (_testCaseFileName.empty() || _testCaseFileName == "stdout") + f = stdout, standard_file = true; + else if (_testCaseFileName == "stderr") + f = stderr, standard_file = true; + else { + f = testlib_fopen_(_testCaseFileName.c_str(), "wb"); + if (NULL == f) + __testlib_fail("Validator::writeTestCase: can't write test case to (" + _testCaseFileName + ")"); + } + std::fprintf(f, "%s", testCaseContent.c_str()); + std::fflush(f); + if (!standard_file) + if (std::fclose(f)) + __testlib_fail("Validator::writeTestCase: can't close test case file (" + _testCaseFileName + ")"); + } + } + } + } + + void addFeature(const std::string &feature) { + if (_features.count(feature)) + __testlib_fail("Feature " + feature + " registered twice."); + if (!isFeatureNameAnalyzable(feature)) + __testlib_fail("Feature name '" + feature + "' contains restricted characters."); + + _features.insert(feature); + } + + void feature(const std::string &feature) { + if (!isFeatureNameAnalyzable(feature)) + __testlib_fail("Feature name '" + feature + "' contains restricted characters."); + + if (!_features.count(feature)) + __testlib_fail("Feature " + feature + " didn't registered via addFeature(feature)."); + + _hitFeatures.insert(feature); + } +} validator; + +const std::string Validator::TEST_MARKUP_HEADER = "MU\xF3\x01"; +const std::string Validator::TEST_CASE_OPEN_TAG = "!c"; +const std::string Validator::TEST_CASE_CLOSE_TAG = ";"; + +struct TestlibFinalizeGuard { + static bool alive; + static bool registered; + + int quitCount, readEofCount; + + TestlibFinalizeGuard() : quitCount(0), readEofCount(0) { + // No operations. + } + + ~TestlibFinalizeGuard() { + bool _alive = alive; + alive = false; + + if (_alive) { + if (testlibMode == _checker && quitCount == 0) + __testlib_fail("Checker must end with quit or quitf call."); + + if (testlibMode == _validator && readEofCount == 0 && quitCount == 0) + __testlib_fail("Validator must end with readEof call."); + + /* opts */ + autoEnsureNoUnusedOpts(); + + if (!registered) + __testlib_fail("Call register-function in the first line of the main (registerTestlibCmd or other similar)"); + } + + if (__testlib_exitCode == 0) { + validator.writeTestOverviewLog(); + validator.writeTestMarkup(); + validator.writeTestCase(); + } + } + +private: + /* opts */ + void autoEnsureNoUnusedOpts(); +}; + +bool TestlibFinalizeGuard::alive = true; +bool TestlibFinalizeGuard::registered = false; +extern TestlibFinalizeGuard testlibFinalizeGuard; + +/* + * Call it to disable checks on finalization. + */ +void disableFinalizeGuard() { + TestlibFinalizeGuard::alive = false; +} + +/* Interactor streams. + */ +std::fstream tout; + +/* implementation + */ + +InStream::InStream() { + reader = NULL; + lastLine = -1; + opened = false; + name = ""; + mode = _input; + strict = false; + stdfile = false; + wordReserveSize = 4; + readManyIteration = NO_INDEX; + maxFileSize = 128 * 1024 * 1024; // 128MB. + maxTokenLength = 32 * 1024 * 1024; // 32MB. + maxMessageLength = 32000; +} + +InStream::InStream(const InStream &baseStream, std::string content) { + reader = new StringInputStreamReader(content); + lastLine = -1; + opened = true; + strict = baseStream.strict; + stdfile = false; + mode = baseStream.mode; + name = "based on " + baseStream.name; + readManyIteration = NO_INDEX; + maxFileSize = 128 * 1024 * 1024; // 128MB. + maxTokenLength = 32 * 1024 * 1024; // 32MB. + maxMessageLength = 32000; +} + +InStream::~InStream() { + if (NULL != reader) { + reader->close(); + delete reader; + reader = NULL; + } +} + +void InStream::setTestCase(int testCase) { + if (testlibMode != _validator || mode != _input || !stdfile || this != &inf) + __testlib_fail("InStream::setTestCase can be used only for inf in validator-mode." + " Actually, prefer setTestCase function instead of InStream member"); + reader->setTestCase(testCase); +} + +std::vector InStream::getReadChars() { + if (testlibMode != _validator || mode != _input || !stdfile || this != &inf) + __testlib_fail("InStream::getReadChars can be used only for inf in validator-mode."); + return reader == NULL ? std::vector() : reader->getReadChars(); +} + +void setTestCase(int testCase) { + static bool first_run = true; + static bool zero_based = false; + + if (first_run && testCase == 0) + zero_based = true; + + if (zero_based) + testCase++; + + __testlib_hasTestCase = true; + __testlib_testCase = testCase; + + if (testlibMode == _validator) + inf.setTestCase(testCase); + + first_run = false; +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +int resultExitCode(TResult r) { + if (r == _ok) + return OK_EXIT_CODE; + if (r == _wa) + return WA_EXIT_CODE; + if (r == _pe) + return PE_EXIT_CODE; + if (r == _fail) + return FAIL_EXIT_CODE; + if (r == _dirt) + return DIRT_EXIT_CODE; + if (r == _points) + return POINTS_EXIT_CODE; + if (r == _unexpected_eof) +#ifdef ENABLE_UNEXPECTED_EOF + return UNEXPECTED_EOF_EXIT_CODE; +#else + return PE_EXIT_CODE; +#endif + if (r >= _partially) + return PC_BASE_EXIT_CODE + (r - _partially); + return FAIL_EXIT_CODE; +} + +void InStream::textColor( +#if !(defined(ON_WINDOWS) && (!defined(_MSC_VER) || _MSC_VER > 1400)) && defined(__GNUC__) + __attribute__((unused)) +#endif + WORD color +) { +#if defined(ON_WINDOWS) && (!defined(_MSC_VER) || _MSC_VER > 1400) + HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE); + SetConsoleTextAttribute(handle, color); +#endif +#if !defined(ON_WINDOWS) && defined(__GNUC__) + if (isatty(2)) + { + switch (color) + { + case LightRed: + fprintf(stderr, "\033[1;31m"); + break; + case LightCyan: + fprintf(stderr, "\033[1;36m"); + break; + case LightGreen: + fprintf(stderr, "\033[1;32m"); + break; + case LightYellow: + fprintf(stderr, "\033[1;33m"); + break; + case LightGray: + default: + fprintf(stderr, "\033[0m"); + } + } +#endif +} + +#ifdef TESTLIB_THROW_EXIT_EXCEPTION_INSTEAD_OF_EXIT +class exit_exception: public std::exception { +private: + int exitCode; +public: + exit_exception(int exitCode): exitCode(exitCode) {} + int getExitCode() { return exitCode; } +}; +#endif + +NORETURN void halt(int exitCode) { +#ifdef FOOTER + InStream::textColor(InStream::LightGray); + std::fprintf(stderr, "Checker: \"%s\"\n", checkerName.c_str()); + std::fprintf(stderr, "Exit code: %d\n", exitCode); + InStream::textColor(InStream::LightGray); +#endif + __testlib_exitCode = exitCode; +#ifdef TESTLIB_THROW_EXIT_EXCEPTION_INSTEAD_OF_EXIT + throw exit_exception(exitCode); +#endif + std::exit(exitCode); +} + +static bool __testlib_shouldCheckDirt(TResult result) { + return result == _ok || result == _points || result >= _partially; +} + +static std::string __testlib_appendMessage(const std::string &message, const std::string &extra) { + int openPos = -1, closePos = -1; + for (size_t i = 0; i < message.length(); i++) { + if (message[i] == InStream::OPEN_BRACKET) { + if (openPos == -1) + openPos = int(i); + else + openPos = INT_MAX; + } + if (message[i] == InStream::CLOSE_BRACKET) { + if (closePos == -1) + closePos = int(i); + else + closePos = INT_MAX; + } + } + if (openPos != -1 && openPos != INT_MAX + && closePos != -1 && closePos != INT_MAX + && openPos < closePos) { + size_t index = message.find(extra, openPos); + if (index == std::string::npos || int(index) >= closePos) { + std::string result(message); + result.insert(closePos, ", " + extra); + return result; + } + return message; + } + + return message + " " + InStream::OPEN_BRACKET + extra + InStream::CLOSE_BRACKET; +} + +static std::string __testlib_toPrintableMessage(const std::string &message) { + int openPos = -1, closePos = -1; + for (size_t i = 0; i < message.length(); i++) { + if (message[i] == InStream::OPEN_BRACKET) { + if (openPos == -1) + openPos = int(i); + else + openPos = INT_MAX; + } + if (message[i] == InStream::CLOSE_BRACKET) { + if (closePos == -1) + closePos = int(i); + else + closePos = INT_MAX; + } + } + if (openPos != -1 && openPos != INT_MAX + && closePos != -1 && closePos != INT_MAX + && openPos < closePos) { + std::string result(message); + result[openPos] = '('; + result[closePos] = ')'; + return result; + } + + return message; +} + +NORETURN void InStream::quit(TResult result, const char *msg) { + if (TestlibFinalizeGuard::alive) + testlibFinalizeGuard.quitCount++; + + std::string message(msg); + message = trim(message); + + if (__testlib_hasTestCase) { + if (result != _ok) + message = __testlib_appendMessage(message, "test case " + vtos(__testlib_testCase)); + else { + if (__testlib_testCase == 1) + message = __testlib_appendMessage(message, vtos(__testlib_testCase) + " test case"); + else + message = __testlib_appendMessage(message, vtos(__testlib_testCase) + " test cases"); + } + } + + // You can change maxMessageLength. + // Example: 'inf.maxMessageLength = 1024 * 1024;'. + if (message.length() > maxMessageLength) { + std::string warn = "message length exceeds " + vtos(maxMessageLength) + + ", the message is truncated: "; + message = warn + message.substr(0, maxMessageLength - warn.length()); + } + +#ifndef ENABLE_UNEXPECTED_EOF + if (result == _unexpected_eof) + result = _pe; +#endif + + if (testlibMode == _scorer && result != _fail) + quits(_fail, "Scorer should return points only. Don't use a quit function."); + + if (mode != _output && result != _fail) { + if (mode == _input && testlibMode == _validator && lastLine != -1) + quits(_fail, __testlib_appendMessage(__testlib_appendMessage(message, name), "line " + vtos(lastLine))); + else + quits(_fail, __testlib_appendMessage(message, name)); + } + + std::FILE *resultFile; + std::string errorName; + + if (__testlib_shouldCheckDirt(result)) { + if (testlibMode != _interactor && !ouf.seekEof()) + quit(_dirt, "Extra information in the output file"); + } + + int pctype = result - _partially; + bool isPartial = false; + + switch (result) { + case _ok: + errorName = "ok "; + quitscrS(LightGreen, errorName); + break; + case _wa: + errorName = "wrong answer "; + quitscrS(LightRed, errorName); + break; + case _pe: + errorName = "wrong output format "; + quitscrS(LightRed, errorName); + break; + case _fail: + errorName = "FAIL "; + quitscrS(LightRed, errorName); + break; + case _dirt: + errorName = "wrong output format "; + quitscrS(LightCyan, errorName); + result = _pe; + break; + case _points: + errorName = "points "; + quitscrS(LightYellow, errorName); + break; + case _unexpected_eof: + errorName = "unexpected eof "; + quitscrS(LightCyan, errorName); + break; + default: + if (result >= _partially) { + errorName = testlib_format_("partially correct (%d) ", pctype); + isPartial = true; + quitscrS(LightYellow, errorName); + } else + quit(_fail, "What is the code ??? "); + } + + if (resultName != "") { + resultFile = testlib_fopen_(resultName.c_str(), "w"); + if (resultFile == NULL) { + resultName = ""; + quit(_fail, "Can not write to the result file"); + } + if (appesMode) { + std::fprintf(resultFile, "", appesModeEncoding.c_str()); + if (isPartial) + std::fprintf(resultFile, "", + outcomes[(int) _partially].c_str(), pctype); + else { + if (result != _points) + std::fprintf(resultFile, "", outcomes[(int) result].c_str()); + else { + if (__testlib_points == std::numeric_limits::infinity()) + quit(_fail, "Expected points, but infinity found"); + std::string stringPoints = removeDoubleTrailingZeroes(testlib_format_("%.10f", __testlib_points)); + std::fprintf(resultFile, "", + outcomes[(int) result].c_str(), stringPoints.c_str()); + } + } + xmlSafeWrite(resultFile, __testlib_toPrintableMessage(message).c_str()); + std::fprintf(resultFile, "\n"); + } else + std::fprintf(resultFile, "%s", __testlib_toPrintableMessage(message).c_str()); + if (NULL == resultFile || fclose(resultFile) != 0) { + resultName = ""; + quit(_fail, "Can not write to the result file"); + } + } + + quitscr(LightGray, __testlib_toPrintableMessage(message).c_str()); + std::fprintf(stderr, "\n"); + + inf.close(); + ouf.close(); + ans.close(); + if (tout.is_open()) + tout.close(); + + textColor(LightGray); + + if (resultName != "") + std::fprintf(stderr, "See file to check exit message\n"); + + halt(resultExitCode(result)); +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 3, 4))) +#endif +NORETURN void InStream::quitf(TResult result, const char *msg, ...) { + FMT_TO_RESULT(msg, msg, message); + InStream::quit(result, message.c_str()); +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +void InStream::quitif(bool condition, TResult result, const char *msg, ...) { + if (condition) { + FMT_TO_RESULT(msg, msg, message); + InStream::quit(result, message.c_str()); + } +} + +NORETURN void InStream::quits(TResult result, std::string msg) { + InStream::quit(result, msg.c_str()); +} + +void InStream::xmlSafeWrite(std::FILE *file, const char *msg) { + size_t lmsg = strlen(msg); + for (size_t i = 0; i < lmsg; i++) { + if (msg[i] == '&') { + std::fprintf(file, "%s", "&"); + continue; + } + if (msg[i] == '<') { + std::fprintf(file, "%s", "<"); + continue; + } + if (msg[i] == '>') { + std::fprintf(file, "%s", ">"); + continue; + } + if (msg[i] == '"') { + std::fprintf(file, "%s", """); + continue; + } + if (0 <= msg[i] && msg[i] <= 31) { + std::fprintf(file, "%c", '.'); + continue; + } + std::fprintf(file, "%c", msg[i]); + } +} + +void InStream::quitscrS(WORD color, std::string msg) { + quitscr(color, msg.c_str()); +} + +void InStream::quitscr(WORD color, const char *msg) { + if (resultName == "") { + textColor(color); + std::fprintf(stderr, "%s", msg); + textColor(LightGray); + } +} + +void InStream::reset(std::FILE *file) { + if (opened && stdfile) + quit(_fail, "Can't reset standard handle"); + + if (opened) + close(); + + if (!stdfile && NULL == file) + if (NULL == (file = testlib_fopen_(name.c_str(), "rb"))) { + if (mode == _output) + quits(_pe, std::string("Output file not found: \"") + name + "\""); + + if (mode == _answer) + quits(_fail, std::string("Answer file not found: \"") + name + "\""); + } + + if (NULL != file) { + opened = true; + __testlib_set_binary(file); + + if (stdfile) + reader = new FileInputStreamReader(file, name); + else + reader = new BufferedFileInputStreamReader(file, name); + } else { + opened = false; + reader = NULL; + } +} + +void InStream::init(std::string fileName, TMode mode) { + opened = false; + name = fileName; + stdfile = false; + this->mode = mode; + + std::ifstream stream; + stream.open(fileName.c_str(), std::ios::in); + if (stream.is_open()) { + std::streampos start = stream.tellg(); + stream.seekg(0, std::ios::end); + std::streampos end = stream.tellg(); + size_t fileSize = size_t(end - start); + stream.close(); + + // You can change maxFileSize. + // Example: 'inf.maxFileSize = 256 * 1024 * 1024;'. + if (fileSize > maxFileSize) + quitf(_pe, "File size exceeds %d bytes, size is %d", int(maxFileSize), int(fileSize)); + } + + reset(); +} + +void InStream::init(std::FILE *f, TMode mode) { + opened = false; + name = "untitled"; + this->mode = mode; + + if (f == stdin) + name = "stdin", stdfile = true; + if (f == stdout) + name = "stdout", stdfile = true; + if (f == stderr) + name = "stderr", stdfile = true; + + reset(f); +} + +void InStream::skipBom() { + const std::string utf8Bom = "\xEF\xBB\xBF"; + size_t index = 0; + while (index < utf8Bom.size() && curChar() == utf8Bom[index]) { + index++; + skipChar(); + } + if (index < utf8Bom.size()) { + while (index != 0) { + unreadChar(utf8Bom[index - 1]); + index--; + } + } +} + +char InStream::curChar() { + return char(reader->curChar()); +} + +char InStream::nextChar() { + return char(reader->nextChar()); +} + +char InStream::readChar() { + return nextChar(); +} + +char InStream::readChar(char c) { + lastLine = reader->getLine(); + char found = readChar(); + if (c != found) { + if (!isEoln(found)) + quit(_pe, ("Unexpected character '" + std::string(1, found) + "', but '" + std::string(1, c) + + "' expected").c_str()); + else + quit(_pe, ("Unexpected character " + ("#" + vtos(int(found))) + ", but '" + std::string(1, c) + + "' expected").c_str()); + } + return found; +} + +char InStream::readSpace() { + return readChar(' '); +} + +void InStream::unreadChar(char c) { + reader->unreadChar(c); +} + +void InStream::skipChar() { + reader->skipChar(); +} + +void InStream::skipBlanks() { + while (isBlanks(reader->curChar())) + reader->skipChar(); +} + +std::string InStream::readWord() { + readWordTo(_tmpReadToken); + return _tmpReadToken; +} + +void InStream::readWordTo(std::string &result) { + if (!strict) + skipBlanks(); + + lastLine = reader->getLine(); + int cur = reader->nextChar(); + + if (cur == EOFC) + quit(_unexpected_eof, "Unexpected end of file - token expected"); + + if (isBlanks(cur)) + quit(_pe, "Unexpected white-space - token expected"); + + result.clear(); + + while (!(isBlanks(cur) || cur == EOFC)) { + result += char(cur); + + // You can change maxTokenLength. + // Example: 'inf.maxTokenLength = 128 * 1024 * 1024;'. + if (result.length() > maxTokenLength) + quitf(_pe, "Length of token exceeds %d, token is '%s...'", int(maxTokenLength), + __testlib_part(result).c_str()); + + cur = reader->nextChar(); + } + + reader->unreadChar(cur); + + if (result.length() == 0) + quit(_unexpected_eof, "Unexpected end of file or white-space - token expected"); +} + +std::string InStream::readToken() { + return readWord(); +} + +void InStream::readTokenTo(std::string &result) { + readWordTo(result); +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +static std::string __testlib_part(const std::string &s) { + std::string t; + for (size_t i = 0; i < s.length(); i++) + if (s[i] != '\0') + t += s[i]; + else + t += '~'; + if (t.length() <= 64) + return t; + else + return t.substr(0, 30) + "..." + t.substr(s.length() - 31, 31); +} + +#define __testlib_readMany(readMany, readOne, typeName, space) \ + if (size < 0) \ + quit(_fail, #readMany ": size should be non-negative."); \ + if (size > 100000000) \ + quit(_fail, #readMany ": size should be at most 100000000."); \ + \ + std::vector result(size); \ + readManyIteration = indexBase; \ + \ + for (int i = 0; i < size; i++) \ + { \ + result[i] = readOne; \ + readManyIteration++; \ + if (strict && space && i + 1 < size) \ + readSpace(); \ + } \ + \ + readManyIteration = NO_INDEX; \ + return result; \ + + +std::string InStream::readWord(const pattern &p, const std::string &variableName) { + readWordTo(_tmpReadToken); + if (!p.matches(_tmpReadToken)) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, + ("Token \"" + __testlib_part(_tmpReadToken) + "\" doesn't correspond to pattern \"" + p.src() + + "\"").c_str()); + else + quit(_wa, ("Token parameter [name=" + variableName + "] equals to \"" + __testlib_part(_tmpReadToken) + + "\", doesn't correspond to pattern \"" + p.src() + "\"").c_str()); + } else { + if (variableName.empty()) + quit(_wa, ("Token element [index=" + vtos(readManyIteration) + "] equals to \"" + + __testlib_part(_tmpReadToken) + "\" doesn't correspond to pattern \"" + p.src() + + "\"").c_str()); + else + quit(_wa, ("Token element " + variableName + "[" + vtos(readManyIteration) + "] equals to \"" + + __testlib_part(_tmpReadToken) + "\", doesn't correspond to pattern \"" + p.src() + + "\"").c_str()); + } + } + if (strict && !variableName.empty()) + validator.addVariable(variableName); + return _tmpReadToken; +} + +std::vector +InStream::readWords(int size, const pattern &p, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readWords, readWord(p, variablesName), std::string, true); +} + +std::vector InStream::readWords(int size, int indexBase) { + __testlib_readMany(readWords, readWord(), std::string, true); +} + +std::string InStream::readWord(const std::string &ptrn, const std::string &variableName) { + return readWord(pattern(ptrn), variableName); +} + +std::vector +InStream::readWords(int size, const std::string &ptrn, const std::string &variablesName, int indexBase) { + pattern p(ptrn); + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readWords, readWord(p, variablesName), std::string, true); +} + +std::string InStream::readToken(const pattern &p, const std::string &variableName) { + return readWord(p, variableName); +} + +std::vector +InStream::readTokens(int size, const pattern &p, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readTokens, readToken(p, variablesName), std::string, true); +} + +std::vector InStream::readTokens(int size, int indexBase) { + __testlib_readMany(readTokens, readToken(), std::string, true); +} + +std::string InStream::readToken(const std::string &ptrn, const std::string &variableName) { + return readWord(ptrn, variableName); +} + +std::vector +InStream::readTokens(int size, const std::string &ptrn, const std::string &variablesName, int indexBase) { + pattern p(ptrn); + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readTokens, readWord(p, variablesName), std::string, true); +} + +void InStream::readWordTo(std::string &result, const pattern &p, const std::string &variableName) { + readWordTo(result); + if (!p.matches(result)) { + if (variableName.empty()) + quit(_wa, ("Token \"" + __testlib_part(result) + "\" doesn't correspond to pattern \"" + p.src() + + "\"").c_str()); + else + quit(_wa, ("Token parameter [name=" + variableName + "] equals to \"" + __testlib_part(result) + + "\", doesn't correspond to pattern \"" + p.src() + "\"").c_str()); + } + if (strict && !variableName.empty()) + validator.addVariable(variableName); +} + +void InStream::readWordTo(std::string &result, const std::string &ptrn, const std::string &variableName) { + return readWordTo(result, pattern(ptrn), variableName); +} + +void InStream::readTokenTo(std::string &result, const pattern &p, const std::string &variableName) { + return readWordTo(result, p, variableName); +} + +void InStream::readTokenTo(std::string &result, const std::string &ptrn, const std::string &variableName) { + return readWordTo(result, ptrn, variableName); +} + +#ifdef __GNUC__ +__attribute__((pure)) +#endif +static inline bool equals(long long integer, const char *s) { + if (integer == LLONG_MIN) + return strcmp(s, "-9223372036854775808") == 0; + + if (integer == 0LL) + return strcmp(s, "0") == 0; + + size_t length = strlen(s); + + if (length == 0) + return false; + + if (integer < 0 && s[0] != '-') + return false; + + if (integer < 0) + s++, length--, integer = -integer; + + if (length == 0) + return false; + + while (integer > 0) { + int digit = int(integer % 10); + + if (s[length - 1] != '0' + digit) + return false; + + length--; + integer /= 10; + } + + return length == 0; +} + +#ifdef __GNUC__ +__attribute__((pure)) +#endif +static inline bool equals(unsigned long long integer, const char *s) { + if (integer == ULLONG_MAX) + return strcmp(s, "18446744073709551615") == 0; + + if (integer == 0ULL) + return strcmp(s, "0") == 0; + + size_t length = strlen(s); + + if (length == 0) + return false; + + while (integer > 0) { + int digit = int(integer % 10); + + if (s[length - 1] != '0' + digit) + return false; + + length--; + integer /= 10; + } + + return length == 0; +} + +static inline double stringToDouble(InStream &in, const char *buffer) { + double result; + + size_t length = strlen(buffer); + + int minusCount = 0; + int plusCount = 0; + int decimalPointCount = 0; + int digitCount = 0; + int eCount = 0; + + for (size_t i = 0; i < length; i++) { + if (('0' <= buffer[i] && buffer[i] <= '9') || buffer[i] == '.' + || buffer[i] == 'e' || buffer[i] == 'E' + || buffer[i] == '-' || buffer[i] == '+') { + if ('0' <= buffer[i] && buffer[i] <= '9') + digitCount++; + if (buffer[i] == 'e' || buffer[i] == 'E') + eCount++; + if (buffer[i] == '-') + minusCount++; + if (buffer[i] == '+') + plusCount++; + if (buffer[i] == '.') + decimalPointCount++; + } else + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + // If for sure is not a number in standard notation or in e-notation. + if (digitCount == 0 || minusCount > 2 || plusCount > 2 || decimalPointCount > 1 || eCount > 1) + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + char *suffix = new char[length + 1]; + std::memset(suffix, 0, length + 1); + int scanned; +#ifdef _MSC_VER + scanned = sscanf_s(buffer, "%lf%s", &result, suffix, (unsigned int)(length + 1)); +#else + scanned = std::sscanf(buffer, "%lf%s", &result, suffix); +#endif + bool empty = strlen(suffix) == 0; + delete[] suffix; + + if (scanned == 1 || (scanned == 2 && empty)) { + if (__testlib_isNaN(result)) + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + return result; + } else + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); +} + +static inline double stringToDouble(InStream &in, const std::string& buffer) { + for (size_t i = 0; i < buffer.length(); i++) + if (buffer[i] == '\0') + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found (it contains \\0)").c_str()); + return stringToDouble(in, buffer.c_str()); +} + +static inline double stringToStrictDouble(InStream &in, const char *buffer, + int minAfterPointDigitCount, int maxAfterPointDigitCount) { + if (minAfterPointDigitCount < 0) + in.quit(_fail, "stringToStrictDouble: minAfterPointDigitCount should be non-negative."); + + if (minAfterPointDigitCount > maxAfterPointDigitCount) + in.quit(_fail, + "stringToStrictDouble: minAfterPointDigitCount should be less or equal to maxAfterPointDigitCount."); + + double result; + + size_t length = strlen(buffer); + + if (length == 0 || length > 1000) + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + if (buffer[0] != '-' && (buffer[0] < '0' || buffer[0] > '9')) + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + int pointPos = -1; + for (size_t i = 1; i + 1 < length; i++) { + if (buffer[i] == '.') { + if (pointPos > -1) + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + pointPos = int(i); + } + if (buffer[i] != '.' && (buffer[i] < '0' || buffer[i] > '9')) + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + if (buffer[length - 1] < '0' || buffer[length - 1] > '9') + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + int afterDigitsCount = (pointPos == -1 ? 0 : int(length) - pointPos - 1); + if (afterDigitsCount < minAfterPointDigitCount || afterDigitsCount > maxAfterPointDigitCount) + in.quit(_pe, ("Expected strict double with number of digits after point in range [" + + vtos(minAfterPointDigitCount) + + "," + + vtos(maxAfterPointDigitCount) + + "], but \"" + __testlib_part(buffer) + "\" found").c_str() + ); + + int firstDigitPos = -1; + for (size_t i = 0; i < length; i++) + if (buffer[i] >= '0' && buffer[i] <= '9') { + firstDigitPos = int(i); + break; + } + + if (firstDigitPos > 1 || firstDigitPos == -1) + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + if (buffer[firstDigitPos] == '0' && firstDigitPos + 1 < int(length) + && buffer[firstDigitPos + 1] >= '0' && buffer[firstDigitPos + 1] <= '9') + in.quit(_pe, ("Expected strict double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + char *suffix = new char[length + 1]; + std::memset(suffix, 0, length + 1); + int scanned; +#ifdef _MSC_VER + scanned = sscanf_s(buffer, "%lf%s", &result, suffix, (unsigned int)(length + 1)); +#else + scanned = std::sscanf(buffer, "%lf%s", &result, suffix); +#endif + bool empty = strlen(suffix) == 0; + delete[] suffix; + + if (scanned == 1 || (scanned == 2 && empty)) { + if (__testlib_isNaN(result) || __testlib_isInfinite(result)) + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); + if (buffer[0] == '-' && result >= 0) + in.quit(_pe, ("Redundant minus in \"" + __testlib_part(buffer) + "\" found").c_str()); + return result; + } else + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found").c_str()); +} + +static inline double stringToStrictDouble(InStream &in, const std::string& buffer, + int minAfterPointDigitCount, int maxAfterPointDigitCount) { + for (size_t i = 0; i < buffer.length(); i++) + if (buffer[i] == '\0') + in.quit(_pe, ("Expected double, but \"" + __testlib_part(buffer) + "\" found (it contains \\0)").c_str()); + return stringToStrictDouble(in, buffer.c_str(), minAfterPointDigitCount, maxAfterPointDigitCount); +} + +static inline long long stringToLongLong(InStream &in, const char *buffer) { + size_t length = strlen(buffer); + if (length == 0 || length > 20) + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + bool has_minus = (length > 1 && buffer[0] == '-'); + int zeroes = 0; + bool processingZeroes = true; + + for (int i = (has_minus ? 1 : 0); i < int(length); i++) { + if (buffer[i] == '0' && processingZeroes) + zeroes++; + else + processingZeroes = false; + + if (buffer[i] < '0' || buffer[i] > '9') + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + long long int result; + try { + result = std::stoll(buffer); + } catch (const std::exception&) { + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } catch (...) { + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + if ((zeroes > 0 && (result != 0 || has_minus)) || zeroes > 1) + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + return result; +} + +static inline long long stringToLongLong(InStream &in, const std::string& buffer) { + for (size_t i = 0; i < buffer.length(); i++) + if (buffer[i] == '\0') + in.quit(_pe, ("Expected integer, but \"" + __testlib_part(buffer) + "\" found (it contains \\0)").c_str()); + return stringToLongLong(in, buffer.c_str()); +} + +static inline unsigned long long stringToUnsignedLongLong(InStream &in, const char *buffer) { + size_t length = strlen(buffer); + + if (length == 0 || length > 20) + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + if (length > 1 && buffer[0] == '0') + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + + for (int i = 0; i < int(length); i++) { + if (buffer[i] < '0' || buffer[i] > '9') + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + unsigned long long result; + try { + result = std::stoull(buffer); + } catch (const std::exception&) { + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } catch (...) { + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found").c_str()); + } + + return result; +} + +static inline long long stringToUnsignedLongLong(InStream &in, const std::string& buffer) { + for (size_t i = 0; i < buffer.length(); i++) + if (buffer[i] == '\0') + in.quit(_pe, ("Expected unsigned integer, but \"" + __testlib_part(buffer) + "\" found (it contains \\0)").c_str()); + return stringToUnsignedLongLong(in, buffer.c_str()); +} + +int InStream::readInteger() { + if (!strict && seekEof()) + quit(_unexpected_eof, "Unexpected end of file - int32 expected"); + + readWordTo(_tmpReadToken); + + long long value = stringToLongLong(*this, _tmpReadToken); + if (value < INT_MIN || value > INT_MAX) + quit(_pe, ("Expected int32, but \"" + __testlib_part(_tmpReadToken) + "\" found").c_str()); + + return int(value); +} + +long long InStream::readLong() { + if (!strict && seekEof()) + quit(_unexpected_eof, "Unexpected end of file - int64 expected"); + + readWordTo(_tmpReadToken); + + return stringToLongLong(*this, _tmpReadToken); +} + +unsigned long long InStream::readUnsignedLong() { + if (!strict && seekEof()) + quit(_unexpected_eof, "Unexpected end of file - int64 expected"); + + readWordTo(_tmpReadToken); + + return stringToUnsignedLongLong(*this, _tmpReadToken); +} + +long long InStream::readLong(long long minv, long long maxv, const std::string &variableName) { + long long result = readLong(); + + if (result < minv || result > maxv) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, ("Integer " + vtos(result) + " violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + + "]").c_str()); + else + quit(_wa, ("Integer parameter [name=" + std::string(variableName) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + } else { + if (variableName.empty()) + quit(_wa, ("Integer element [index=" + vtos(readManyIteration) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + else + quit(_wa, + ("Integer element " + std::string(variableName) + "[" + vtos(readManyIteration) + "] equals to " + + vtos(result) + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + } + } + + if (strict && !variableName.empty()) { + validator.addBoundsHit(variableName, ValidatorBoundsHit(minv == result, maxv == result)); + validator.adjustConstantBounds(variableName, minv, maxv); + validator.addVariable(variableName); + } + + return result; +} + +std::vector +InStream::readLongs(int size, long long minv, long long maxv, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readLongs, readLong(minv, maxv, variablesName), long long, true) +} + +std::vector InStream::readLongs(int size, int indexBase) { + __testlib_readMany(readLongs, readLong(), long long, true) +} + +unsigned long long +InStream::readUnsignedLong(unsigned long long minv, unsigned long long maxv, const std::string &variableName) { + unsigned long long result = readUnsignedLong(); + + if (result < minv || result > maxv) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, + ("Unsigned integer " + vtos(result) + " violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + + "]").c_str()); + else + quit(_wa, + ("Unsigned integer parameter [name=" + std::string(variableName) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + } else { + if (variableName.empty()) + quit(_wa, + ("Unsigned integer element [index=" + vtos(readManyIteration) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + else + quit(_wa, ("Unsigned integer element " + std::string(variableName) + "[" + vtos(readManyIteration) + + "] equals to " + vtos(result) + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + + "]").c_str()); + } + } + + if (strict && !variableName.empty()) { + validator.addBoundsHit(variableName, ValidatorBoundsHit(minv == result, maxv == result)); + validator.adjustConstantBounds(variableName, minv, maxv); + validator.addVariable(variableName); + } + + return result; +} + +std::vector InStream::readUnsignedLongs(int size, unsigned long long minv, unsigned long long maxv, + const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readUnsignedLongs, readUnsignedLong(minv, maxv, variablesName), unsigned long long, true) +} + +std::vector InStream::readUnsignedLongs(int size, int indexBase) { + __testlib_readMany(readUnsignedLongs, readUnsignedLong(), unsigned long long, true) +} + +unsigned long long +InStream::readLong(unsigned long long minv, unsigned long long maxv, const std::string &variableName) { + return readUnsignedLong(minv, maxv, variableName); +} + +int InStream::readInt() { + return readInteger(); +} + +int InStream::readInt(int minv, int maxv, const std::string &variableName) { + int result = readInt(); + + if (result < minv || result > maxv) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, ("Integer " + vtos(result) + " violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + + "]").c_str()); + else + quit(_wa, ("Integer parameter [name=" + std::string(variableName) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + } else { + if (variableName.empty()) + quit(_wa, ("Integer element [index=" + vtos(readManyIteration) + "] equals to " + vtos(result) + + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + else + quit(_wa, + ("Integer element " + std::string(variableName) + "[" + vtos(readManyIteration) + "] equals to " + + vtos(result) + ", violates the range [" + toHumanReadableString(minv) + ", " + toHumanReadableString(maxv) + "]").c_str()); + } + } + + if (strict && !variableName.empty()) { + validator.addBoundsHit(variableName, ValidatorBoundsHit(minv == result, maxv == result)); + validator.adjustConstantBounds(variableName, minv, maxv); + validator.addVariable(variableName); + } + + return result; +} + +int InStream::readInteger(int minv, int maxv, const std::string &variableName) { + return readInt(minv, maxv, variableName); +} + +std::vector InStream::readInts(int size, int minv, int maxv, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readInts, readInt(minv, maxv, variablesName), int, true) +} + +std::vector InStream::readInts(int size, int indexBase) { + __testlib_readMany(readInts, readInt(), int, true) +} + +std::vector InStream::readIntegers(int size, int minv, int maxv, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readIntegers, readInt(minv, maxv, variablesName), int, true) +} + +std::vector InStream::readIntegers(int size, int indexBase) { + __testlib_readMany(readIntegers, readInt(), int, true) +} + +double InStream::readReal() { + if (!strict && seekEof()) + quit(_unexpected_eof, "Unexpected end of file - double expected"); + + return stringToDouble(*this, readWord()); +} + +double InStream::readDouble() { + return readReal(); +} + +double InStream::readReal(double minv, double maxv, const std::string &variableName) { + double result = readReal(); + + if (result < minv || result > maxv) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, ("Double " + vtos(result) + " violates the range [" + vtos(minv) + ", " + vtos(maxv) + + "]").c_str()); + else + quit(_wa, ("Double parameter [name=" + std::string(variableName) + "] equals to " + vtos(result) + + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + "]").c_str()); + } else { + if (variableName.empty()) + quit(_wa, ("Double element [index=" + vtos(readManyIteration) + "] equals to " + vtos(result) + + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + "]").c_str()); + else + quit(_wa, + ("Double element " + std::string(variableName) + "[" + vtos(readManyIteration) + "] equals to " + + vtos(result) + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + "]").c_str()); + } + } + + if (strict && !variableName.empty()) { + validator.addBoundsHit(variableName, ValidatorBoundsHit( + doubleDelta(minv, result) < ValidatorBoundsHit::EPS, + doubleDelta(maxv, result) < ValidatorBoundsHit::EPS + )); + validator.adjustConstantBounds(variableName, minv, maxv); + validator.addVariable(variableName); + } + + return result; +} + +std::vector +InStream::readReals(int size, double minv, double maxv, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readReals, readReal(minv, maxv, variablesName), double, true) +} + +std::vector InStream::readReals(int size, int indexBase) { + __testlib_readMany(readReals, readReal(), double, true) +} + +double InStream::readDouble(double minv, double maxv, const std::string &variableName) { + return readReal(minv, maxv, variableName); +} + +std::vector +InStream::readDoubles(int size, double minv, double maxv, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readDoubles, readDouble(minv, maxv, variablesName), double, true) +} + +std::vector InStream::readDoubles(int size, int indexBase) { + __testlib_readMany(readDoubles, readDouble(), double, true) +} + +double InStream::readStrictReal(double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variableName) { + if (!strict && seekEof()) + quit(_unexpected_eof, "Unexpected end of file - strict double expected"); + + double result = stringToStrictDouble(*this, readWord(), minAfterPointDigitCount, maxAfterPointDigitCount); + + if (result < minv || result > maxv) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, ("Strict double " + vtos(result) + " violates the range [" + vtos(minv) + ", " + vtos(maxv) + + "]").c_str()); + else + quit(_wa, + ("Strict double parameter [name=" + std::string(variableName) + "] equals to " + vtos(result) + + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + "]").c_str()); + } else { + if (variableName.empty()) + quit(_wa, ("Strict double element [index=" + vtos(readManyIteration) + "] equals to " + vtos(result) + + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + "]").c_str()); + else + quit(_wa, ("Strict double element " + std::string(variableName) + "[" + vtos(readManyIteration) + + "] equals to " + vtos(result) + ", violates the range [" + vtos(minv) + ", " + vtos(maxv) + + "]").c_str()); + } + } + + if (strict && !variableName.empty()) { + validator.addBoundsHit(variableName, ValidatorBoundsHit( + doubleDelta(minv, result) < ValidatorBoundsHit::EPS, + doubleDelta(maxv, result) < ValidatorBoundsHit::EPS + )); + validator.adjustConstantBounds(variableName, minv, maxv); + validator.addVariable(variableName); + } + + return result; +} + +std::vector InStream::readStrictReals(int size, double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readStrictReals, + readStrictReal(minv, maxv, minAfterPointDigitCount, maxAfterPointDigitCount, variablesName), + double, true) +} + +double InStream::readStrictDouble(double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variableName) { + return readStrictReal(minv, maxv, + minAfterPointDigitCount, maxAfterPointDigitCount, + variableName); +} + +std::vector InStream::readStrictDoubles(int size, double minv, double maxv, + int minAfterPointDigitCount, int maxAfterPointDigitCount, + const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readStrictDoubles, + readStrictDouble(minv, maxv, minAfterPointDigitCount, maxAfterPointDigitCount, variablesName), + double, true) +} + +bool InStream::eof() { + if (!strict && NULL == reader) + return true; + + return reader->eof(); +} + +bool InStream::seekEof() { + if (!strict && NULL == reader) + return true; + skipBlanks(); + return eof(); +} + +bool InStream::eoln() { + if (!strict && NULL == reader) + return true; + + int c = reader->nextChar(); + + if (!strict) { + if (c == EOFC) + return true; + + if (c == CR) { + c = reader->nextChar(); + + if (c != LF) { + reader->unreadChar(c); + reader->unreadChar(CR); + return false; + } else + return true; + } + + if (c == LF) + return true; + + reader->unreadChar(c); + return false; + } else { + bool returnCr = false; + +#if (defined(ON_WINDOWS) && !defined(FOR_LINUX)) || defined(FOR_WINDOWS) + if (c != CR) { + reader->unreadChar(c); + return false; + } else { + if (!returnCr) + returnCr = true; + c = reader->nextChar(); + } +#endif + if (c != LF) { + reader->unreadChar(c); + if (returnCr) + reader->unreadChar(CR); + return false; + } + + return true; + } +} + +void InStream::readEoln() { + lastLine = reader->getLine(); + if (!eoln()) + quit(_pe, "Expected EOLN"); +} + +void InStream::readEof() { + lastLine = reader->getLine(); + if (!eof()) + quit(_pe, "Expected EOF"); + + if (TestlibFinalizeGuard::alive && this == &inf) + testlibFinalizeGuard.readEofCount++; +} + +bool InStream::seekEoln() { + if (!strict && NULL == reader) + return true; + + int cur; + do { + cur = reader->nextChar(); + } while (cur == SPACE || cur == TAB); + + reader->unreadChar(cur); + return eoln(); +} + +void InStream::nextLine() { + readLine(); +} + +void InStream::readStringTo(std::string &result) { + if (NULL == reader) + quit(_pe, "Expected line"); + + result.clear(); + + for (;;) { + int cur = reader->curChar(); + + if (cur == LF || cur == EOFC) + break; + + if (cur == CR) { + cur = reader->nextChar(); + if (reader->curChar() == LF) { + reader->unreadChar(cur); + break; + } + } + + lastLine = reader->getLine(); + result += char(reader->nextChar()); + } + + if (strict) + readEoln(); + else + eoln(); +} + +std::string InStream::readString() { + readStringTo(_tmpReadToken); + return _tmpReadToken; +} + +std::vector InStream::readStrings(int size, int indexBase) { + __testlib_readMany(readStrings, readString(), std::string, false) +} + +void InStream::readStringTo(std::string &result, const pattern &p, const std::string &variableName) { + readStringTo(result); + if (!p.matches(result)) { + if (readManyIteration == NO_INDEX) { + if (variableName.empty()) + quit(_wa, ("Line \"" + __testlib_part(result) + "\" doesn't correspond to pattern \"" + p.src() + + "\"").c_str()); + else + quit(_wa, ("Line [name=" + variableName + "] equals to \"" + __testlib_part(result) + + "\", doesn't correspond to pattern \"" + p.src() + "\"").c_str()); + } else { + if (variableName.empty()) + quit(_wa, + ("Line element [index=" + vtos(readManyIteration) + "] equals to \"" + __testlib_part(result) + + "\" doesn't correspond to pattern \"" + p.src() + "\"").c_str()); + else + quit(_wa, + ("Line element " + std::string(variableName) + "[" + vtos(readManyIteration) + "] equals to \"" + + __testlib_part(result) + "\", doesn't correspond to pattern \"" + p.src() + "\"").c_str()); + } + } + if (strict && !variableName.empty()) + validator.addVariable(variableName); +} + +void InStream::readStringTo(std::string &result, const std::string &ptrn, const std::string &variableName) { + readStringTo(result, pattern(ptrn), variableName); +} + +std::string InStream::readString(const pattern &p, const std::string &variableName) { + readStringTo(_tmpReadToken, p, variableName); + return _tmpReadToken; +} + +std::vector +InStream::readStrings(int size, const pattern &p, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readStrings, readString(p, variablesName), std::string, false) +} + +std::string InStream::readString(const std::string &ptrn, const std::string &variableName) { + readStringTo(_tmpReadToken, ptrn, variableName); + return _tmpReadToken; +} + +std::vector +InStream::readStrings(int size, const std::string &ptrn, const std::string &variablesName, int indexBase) { + pattern p(ptrn); + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readStrings, readString(p, variablesName), std::string, false) +} + +void InStream::readLineTo(std::string &result) { + readStringTo(result); +} + +std::string InStream::readLine() { + return readString(); +} + +std::vector InStream::readLines(int size, int indexBase) { + __testlib_readMany(readLines, readString(), std::string, false) +} + +void InStream::readLineTo(std::string &result, const pattern &p, const std::string &variableName) { + readStringTo(result, p, variableName); +} + +void InStream::readLineTo(std::string &result, const std::string &ptrn, const std::string &variableName) { + readStringTo(result, ptrn, variableName); +} + +std::string InStream::readLine(const pattern &p, const std::string &variableName) { + return readString(p, variableName); +} + +std::vector +InStream::readLines(int size, const pattern &p, const std::string &variablesName, int indexBase) { + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readLines, readString(p, variablesName), std::string, false) +} + +std::string InStream::readLine(const std::string &ptrn, const std::string &variableName) { + return readString(ptrn, variableName); +} + +std::vector +InStream::readLines(int size, const std::string &ptrn, const std::string &variablesName, int indexBase) { + pattern p(ptrn); + if (strict && !variablesName.empty()) + validator.addVariable(variablesName); + __testlib_readMany(readLines, readString(p, variablesName), std::string, false) +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 3, 4))) +#endif +void InStream::ensuref(bool cond, const char *format, ...) { + if (!cond) { + FMT_TO_RESULT(format, format, message); + this->__testlib_ensure(cond, message); + } +} + +void InStream::__testlib_ensure(bool cond, std::string message) { + if (!cond) + this->quit(_wa, message.c_str()); +} + +void InStream::close() { + if (NULL != reader) { + reader->close(); + delete reader; + reader = NULL; + } + + opened = false; +} + +NORETURN void quit(TResult result, const std::string &msg) { + ouf.quit(result, msg.c_str()); +} + +NORETURN void quit(TResult result, const char *msg) { + ouf.quit(result, msg); +} + +double __testlib_preparePoints(double points_) { + volatile double points = points_; + if (__testlib_isNaN(points)) + quit(_fail, "Parameter 'points' can't be nan"); + if (__testlib_isInfinite(points)) + quit(_fail, "Parameter 'points' can't be infinite"); + if (points < -1E-8) + quit(_fail, "Parameter 'points' can't be negative"); + if (points <= 0.0) + points = +0.0; + if (points > 1E6 + 1E-8) + quit(_fail, "Parameter 'points' can't be greater than 1E6"); + if (points >= 1E6) + points = 1E6; + return points; +} + +NORETURN void __testlib_quitp(double points, const char *message) { + __testlib_points = __testlib_preparePoints(points); + std::string stringPoints = removeDoubleTrailingZeroes(testlib_format_("%.10f", __testlib_points)); + + std::string quitMessage; + if (NULL == message || 0 == strlen(message)) + quitMessage = stringPoints; + else + quitMessage = stringPoints + " " + message; + + quit(_points, quitMessage.c_str()); +} + +NORETURN void __testlib_quitp(int points, const char *message) { + __testlib_points = __testlib_preparePoints(points); + std::string stringPoints = testlib_format_("%d", points); + + std::string quitMessage; + if (NULL == message || 0 == strlen(message)) + quitMessage = stringPoints; + else + quitMessage = stringPoints + " " + message; + + quit(_points, quitMessage.c_str()); +} + +NORETURN void quitp(float points, const std::string &message = "") { + __testlib_quitp(double(points), message.c_str()); +} + +NORETURN void quitp(double points, const std::string &message = "") { + __testlib_quitp(points, message.c_str()); +} + +NORETURN void quitp(long double points, const std::string &message = "") { + __testlib_quitp(double(points), message.c_str()); +} + +NORETURN void quitp(int points, const std::string &message = "") { + __testlib_quitp(points, message.c_str()); +} + +NORETURN void quitpi(const std::string &points_info, const std::string &message = "") { + if (points_info.find(' ') != std::string::npos) + quit(_fail, "Parameter 'points_info' can't contain spaces"); + if (message.empty()) + quit(_points, ("points_info=" + points_info).c_str()); + else + quit(_points, ("points_info=" + points_info + " " + message).c_str()); +} + +template +#ifdef __GNUC__ +__attribute__ ((format (printf, 2, 3))) +#endif +NORETURN void quitp(F points, const char *format, ...) { + FMT_TO_RESULT(format, format, message); + quitp(points, message); +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 2, 3))) +#endif +NORETURN void quitf(TResult result, const char *format, ...) { + FMT_TO_RESULT(format, format, message); + quit(result, message); +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 3, 4))) +#endif +void quitif(bool condition, TResult result, const char *format, ...) { + if (condition) { + FMT_TO_RESULT(format, format, message); + quit(result, message); + } +} + +NORETURN void __testlib_help() { + InStream::textColor(InStream::LightCyan); + std::fprintf(stderr, "TESTLIB %s, https://github.com/MikeMirzayanov/testlib/ ", VERSION); + std::fprintf(stderr, "by Mike Mirzayanov, copyright(c) 2005-2020\n"); + std::fprintf(stderr, "Checker name: \"%s\"\n", checkerName.c_str()); + InStream::textColor(InStream::LightGray); + + std::fprintf(stderr, "\n"); + std::fprintf(stderr, "Latest features: \n"); + for (size_t i = 0; i < sizeof(latestFeatures) / sizeof(char *); i++) { + std::fprintf(stderr, "*) %s\n", latestFeatures[i]); + } + std::fprintf(stderr, "\n"); + + std::fprintf(stderr, "Program must be run with the following arguments: \n"); + std::fprintf(stderr, " [--testset testset] [--group group] [ [<-appes>]]\n\n"); + + __testlib_exitCode = FAIL_EXIT_CODE; + std::exit(FAIL_EXIT_CODE); +} + +static void __testlib_ensuresPreconditions() { + // testlib assumes: sizeof(int) = 4. + __TESTLIB_STATIC_ASSERT(sizeof(int) == 4); + + // testlib assumes: INT_MAX == 2147483647. + __TESTLIB_STATIC_ASSERT(INT_MAX == 2147483647); + + // testlib assumes: sizeof(long long) = 8. + __TESTLIB_STATIC_ASSERT(sizeof(long long) == 8); + + // testlib assumes: sizeof(double) = 8. + __TESTLIB_STATIC_ASSERT(sizeof(double) == 8); + + // testlib assumes: no -ffast-math. + if (!__testlib_isNaN(+__testlib_nan())) + quit(_fail, "Function __testlib_isNaN is not working correctly: possible reason is '-ffast-math'"); + if (!__testlib_isNaN(-__testlib_nan())) + quit(_fail, "Function __testlib_isNaN is not working correctly: possible reason is '-ffast-math'"); +} + +std::string __testlib_testset; + +std::string getTestset() { + return __testlib_testset; +} + +std::string __testlib_group; + +std::string getGroup() { + return __testlib_group; +} + +static void __testlib_set_testset_and_group(int argc, char* argv[]) { + for (int i = 1; i < argc; i++) { + if (!strcmp("--testset", argv[i])) { + if (i + 1 < argc && strlen(argv[i + 1]) > 0) + __testlib_testset = argv[++i]; + else + quit(_fail, std::string("Expected non-empty testset after --testset command line parameter")); + } else if (!strcmp("--group", argv[i])) { + if (i + 1 < argc) + __testlib_group = argv[++i]; + else + quit(_fail, std::string("Expected group after --group command line parameter")); + } + } +} + +void registerGen(int argc, char *argv[], int randomGeneratorVersion) { + if (randomGeneratorVersion < 0 || randomGeneratorVersion > 1) + quitf(_fail, "Random generator version is expected to be 0 or 1."); + random_t::version = randomGeneratorVersion; + + __testlib_ensuresPreconditions(); + TestlibFinalizeGuard::registered = true; + + testlibMode = _generator; + __testlib_set_binary(stdin); + rnd.setSeed(argc, argv); + +#if __cplusplus > 199711L || defined(_MSC_VER) + prepareOpts(argc, argv); +#endif +} + +#ifdef USE_RND_AS_BEFORE_087 +void registerGen(int argc, char* argv[]) +{ + registerGen(argc, argv, 0); +} +#else +#ifdef __GNUC__ +#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 4)) +__attribute__ ((deprecated("Use registerGen(argc, argv, 0) or registerGen(argc, argv, 1)." +" The third parameter stands for the random generator version." +" If you are trying to compile old generator use macro -DUSE_RND_AS_BEFORE_087 or registerGen(argc, argv, 0)." +" Version 1 has been released on Spring, 2013. Use it to write new generators."))) +#else +__attribute__ ((deprecated)) +#endif +#endif +#ifdef _MSC_VER +__declspec(deprecated("Use registerGen(argc, argv, 0) or registerGen(argc, argv, 1)." + " The third parameter stands for the random generator version." + " If you are trying to compile old generator use macro -DUSE_RND_AS_BEFORE_087 or registerGen(argc, argv, 0)." + " Version 1 has been released on Spring, 2013. Use it to write new generators.")) +#endif +void registerGen(int argc, char *argv[]) { + std::fprintf(stderr, "Use registerGen(argc, argv, 0) or registerGen(argc, argv, 1)." + " The third parameter stands for the random generator version." + " If you are trying to compile old generator use macro -DUSE_RND_AS_BEFORE_087 or registerGen(argc, argv, 0)." + " Version 1 has been released on Spring, 2013. Use it to write new generators.\n\n"); + registerGen(argc, argv, 0); +} +#endif + +void setAppesModeEncoding(std::string appesModeEncoding) { + static const char* const ENCODINGS[] = {"ascii", "utf-7", "utf-8", "utf-16", "utf-16le", "utf-16be", "utf-32", "utf-32le", "utf-32be", "iso-8859-1", +"iso-8859-2", "iso-8859-3", "iso-8859-4", "iso-8859-5", "iso-8859-6", "iso-8859-7", "iso-8859-8", "iso-8859-9", "iso-8859-10", "iso-8859-11", +"iso-8859-13", "iso-8859-14", "iso-8859-15", "iso-8859-16", "windows-1250", "windows-1251", "windows-1252", "windows-1253", "windows-1254", "windows-1255", +"windows-1256", "windows-1257", "windows-1258", "gb2312", "gbk", "gb18030", "big5", "shift-jis", "euc-jp", "euc-kr", +"euc-cn", "euc-tw", "koi8-r", "koi8-u", "tis-620", "ibm437", "ibm850", "ibm852", "ibm855", "ibm857", +"ibm860", "ibm861", "ibm862", "ibm863", "ibm865", "ibm866", "ibm869", "macroman", "maccentraleurope", "maciceland", +"maccroatian", "macromania", "maccyrillic", "macukraine", "macgreek", "macturkish", "machebrew", "macarabic", "macthai", "hz-gb-2312", +"iso-2022-jp", "iso-2022-kr", "iso-2022-cn", "armscii-8", "tscii", "iscii", "viscii", "geostd8", "cp949", "cp874", +"cp1006", "cp775", "cp858", "cp737", "cp853", "cp856", "cp922", "cp1046", "cp1125", "cp1131", +"ptcp154", "koi8-t", "koi8-ru", "mulelao-1", "cp1133", "iso-ir-166", "tcvn", "iso-ir-14", "iso-ir-87", "iso-ir-159"}; + + appesModeEncoding = lowerCase(appesModeEncoding); + bool valid = false; + for (size_t i = 0; i < sizeof(ENCODINGS) / sizeof(ENCODINGS[0]); i++) + if (appesModeEncoding == ENCODINGS[i]) { + valid = true; + break; + } + if (!valid) + quit(_fail, "Unexpected encoding for setAppesModeEncoding(encoding)"); + ::appesModeEncoding = appesModeEncoding; +} + +void registerInteraction(int argc, char *argv[]) { + __testlib_ensuresPreconditions(); + __testlib_set_testset_and_group(argc, argv); + TestlibFinalizeGuard::registered = true; + + testlibMode = _interactor; + __testlib_set_binary(stdin); + + if (argc > 1 && !strcmp("--help", argv[1])) + __testlib_help(); + + if (argc < 3 || argc > 6) { + quit(_fail, std::string("Program must be run with the following arguments: ") + + std::string(" [ [ [<-appes>]]]") + + "\nUse \"--help\" to get help information"); + } + + if (argc <= 4) { + resultName = ""; + appesMode = false; + } + +#ifndef EJUDGE + if (argc == 5) { + resultName = argv[4]; + appesMode = false; + } + + if (argc == 6) { + if (strcmp("-APPES", argv[5]) && strcmp("-appes", argv[5])) { + quit(_fail, std::string("Program must be run with the following arguments: ") + + " [ [<-appes>]]"); + } else { + resultName = argv[4]; + appesMode = true; + } + } +#endif + + inf.init(argv[1], _input); + + tout.open(argv[2], std::ios_base::out); + if (tout.fail() || !tout.is_open()) + quit(_fail, std::string("Can not write to the test-output-file '") + argv[2] + std::string("'")); + + ouf.init(stdin, _output); + + if (argc >= 4) + ans.init(argv[3], _answer); + else + ans.name = "unopened answer stream"; +} + +void registerValidation() { + __testlib_ensuresPreconditions(); + TestlibFinalizeGuard::registered = true; + + testlibMode = _validator; + + __testlib_set_binary(stdin); + __testlib_set_binary(stdout); + __testlib_set_binary(stderr); + + inf.init(stdin, _input); + inf.strict = true; +} + +void registerValidation(int argc, char *argv[]) { + registerValidation(); + __testlib_set_testset_and_group(argc, argv); + + validator.initialize(); + TestlibFinalizeGuard::registered = true; + + std::string comment = "Validator must be run with the following arguments:" + " [--testset testset]" + " [--group group]" + " [--testOverviewLogFileName fileName]" + " [--testMarkupFileName fileName]" + " [--testCase testCase]" + " [--testCaseFileName fileName]" + ; + + for (int i = 1; i < argc; i++) { + if (!strcmp("--testset", argv[i])) { + if (i + 1 < argc && strlen(argv[i + 1]) > 0) + validator.setTestset(argv[++i]); + else + quit(_fail, comment); + } + if (!strcmp("--group", argv[i])) { + if (i + 1 < argc) + validator.setGroup(argv[++i]); + else + quit(_fail, comment); + } + if (!strcmp("--testOverviewLogFileName", argv[i])) { + if (i + 1 < argc) + validator.setTestOverviewLogFileName(argv[++i]); + else + quit(_fail, comment); + } + if (!strcmp("--testMarkupFileName", argv[i])) { + if (i + 1 < argc) + validator.setTestMarkupFileName(argv[++i]); + else + quit(_fail, comment); + } + if (!strcmp("--testCase", argv[i])) { + if (i + 1 < argc) { + long long testCase = stringToLongLong(inf, argv[++i]); + if (testCase < 1 || testCase >= __TESTLIB_MAX_TEST_CASE) + quit(_fail, testlib_format_("Argument testCase should be between 1 and %d, but ", __TESTLIB_MAX_TEST_CASE) + + toString(testCase) + " found"); + validator.setTestCase(int(testCase)); + } else + quit(_fail, comment); + } + if (!strcmp("--testCaseFileName", argv[i])) { + if (i + 1 < argc) { + validator.setTestCaseFileName(argv[++i]); + } else + quit(_fail, comment); + } + } +} + +void addFeature(const std::string &feature) { + if (testlibMode != _validator) + quit(_fail, "Features are supported in validators only."); + validator.addFeature(feature); +} + +void feature(const std::string &feature) { + if (testlibMode != _validator) + quit(_fail, "Features are supported in validators only."); + validator.feature(feature); +} + +class Checker { +private: + bool _initialized; + std::string _testset; + std::string _group; + +public: + Checker() : _initialized(false), _testset("tests"), _group() { + } + + void initialize() { + _initialized = true; + } + + std::string testset() const { + if (!_initialized) + __testlib_fail("Checker should be initialized with registerTestlibCmd(argc, argv) instead of registerTestlibCmd() to support checker.testset()"); + return _testset; + } + + std::string group() const { + if (!_initialized) + __testlib_fail("Checker should be initialized with registerTestlibCmd(argc, argv) instead of registerTestlibCmd() to support checker.group()"); + return _group; + } + + void setTestset(const char *const testset) { + _testset = testset; + } + + void setGroup(const char *const group) { + _group = group; + } +} checker; + +void registerTestlibCmd(int argc, char *argv[]) { + __testlib_ensuresPreconditions(); + __testlib_set_testset_and_group(argc, argv); + TestlibFinalizeGuard::registered = true; + + testlibMode = _checker; + __testlib_set_binary(stdin); + + std::vector args(1, argv[0]); + checker.initialize(); + + for (int i = 1; i < argc; i++) { + if (!strcmp("--testset", argv[i])) { + if (i + 1 < argc && strlen(argv[i + 1]) > 0) + checker.setTestset(argv[++i]); + else + quit(_fail, std::string("Expected testset after --testset command line parameter")); + } else if (!strcmp("--group", argv[i])) { + if (i + 1 < argc) + checker.setGroup(argv[++i]); + else + quit(_fail, std::string("Expected group after --group command line parameter")); + } else + args.push_back(argv[i]); + } + + argc = int(args.size()); + if (argc > 1 && "--help" == args[1]) + __testlib_help(); + + if (argc < 4 || argc > 6) { + quit(_fail, std::string("Program must be run with the following arguments: ") + + std::string("[--testset testset] [--group group] [ [<-appes>]]") + + "\nUse \"--help\" to get help information"); + } + + if (argc == 4) { + resultName = ""; + appesMode = false; + } + +#ifndef EJUDGE + if (argc == 5) { + resultName = args[4]; + appesMode = false; + } + + if (argc == 6) { + if ("-APPES" != args[5] && "-appes" != args[5]) { + quit(_fail, std::string("Program must be run with the following arguments: ") + + " [ [<-appes>]]"); + } else { + resultName = args[4]; + appesMode = true; + } + } +#endif + + inf.init(args[1], _input); + ouf.init(args[2], _output); + ouf.skipBom(); + ans.init(args[3], _answer); +} + +void registerTestlib(int argc, ...) { + if (argc < 3 || argc > 5) + quit(_fail, std::string("Program must be run with the following arguments: ") + + " [ [<-appes>]]"); + + char **argv = new char *[argc + 1]; + + va_list ap; + va_start(ap, argc); + argv[0] = NULL; + for (int i = 0; i < argc; i++) { + argv[i + 1] = va_arg(ap, char*); + } + va_end(ap); + + registerTestlibCmd(argc + 1, argv); + delete[] argv; +} + +static inline void __testlib_ensure(bool cond, const std::string &msg) { + if (!cond) + quit(_fail, msg.c_str()); +} + +#ifdef __GNUC__ +__attribute__((unused)) +#endif +static inline void __testlib_ensure(bool cond, const char *msg) { + if (!cond) + quit(_fail, msg); +} + +#define ensure(cond) __testlib_ensure((cond), "Condition failed: \"" #cond "\"") +#define STRINGIZE_DETAIL(x) (#x) +#define STRINGIZE(x) STRINGIZE_DETAIL((x)) +#define ensure_ext(cond) __testlib_ensure((cond), "Line " STRINGIZE(__LINE__) ": Condition failed: \"" #cond "\"") + +#ifdef __GNUC__ +__attribute__ ((format (printf, 2, 3))) +#endif +inline void ensuref(bool cond, const char *format, ...) { + if (!cond) { + FMT_TO_RESULT(format, format, message); + __testlib_ensure(cond, message); + } +} + +NORETURN static void __testlib_fail(const std::string &message) { + quitf(_fail, "%s", message.c_str()); +} + +#ifdef __GNUC__ +__attribute__ ((format (printf, 1, 2))) +#endif +void setName(const char *format, ...) { + FMT_TO_RESULT(format, format, name); + checkerName = name; +} + +/* + * Do not use random_shuffle, because it will produce different result + * for different C++ compilers. + * + * This implementation uses testlib random_t to produce random numbers, so + * it is stable. + */ +template +void shuffle(_RandomAccessIter __first, _RandomAccessIter __last) { + if (__first == __last) return; + for (_RandomAccessIter __i = __first + 1; __i != __last; ++__i) + std::iter_swap(__i, __first + rnd.next(int(__i - __first) + 1)); +} + + +template +#if defined(__GNUC__) && !defined(__clang__) +__attribute__ ((error("Don't use random_shuffle(), use shuffle() instead"))) +#endif +void random_shuffle(_RandomAccessIter, _RandomAccessIter) { + quitf(_fail, "Don't use random_shuffle(), use shuffle() instead"); +} + +#ifdef __GLIBC__ +# define RAND_THROW_STATEMENT throw() +#else +# define RAND_THROW_STATEMENT +#endif + +#if defined(__GNUC__) && !defined(__clang__) + +__attribute__ ((error("Don't use rand(), use rnd.next() instead"))) +#endif +#ifdef _MSC_VER +# pragma warning( disable : 4273 ) +#endif +int rand() RAND_THROW_STATEMENT +{ + quitf(_fail, "Don't use rand(), use rnd.next() instead"); + + /* This line never runs. */ + //throw "Don't use rand(), use rnd.next() instead"; +} + +#if defined(__GNUC__) && !defined(__clang__) + +__attribute__ ((error("Don't use srand(), you should use " +"'registerGen(argc, argv, 1);' to initialize generator seed " +"by hash code of the command line params. The third parameter " +"is randomGeneratorVersion (currently the latest is 1)."))) +#endif +#ifdef _MSC_VER +# pragma warning( disable : 4273 ) +#endif +void srand(unsigned int seed) RAND_THROW_STATEMENT +{ + quitf(_fail, "Don't use srand(), you should use " + "'registerGen(argc, argv, 1);' to initialize generator seed " + "by hash code of the command line params. The third parameter " + "is randomGeneratorVersion (currently the latest is 1) [ignored seed=%u].", seed); +} + +void startTest(int test) { + const std::string testFileName = vtos(test); + if (NULL == testlib_freopen_(testFileName.c_str(), "wt", stdout)) + __testlib_fail("Unable to write file '" + testFileName + "'"); +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline std::string compress(const std::string &s) { + return __testlib_part(s); +} + +#ifdef __GNUC__ +__attribute__((const)) +#endif +inline std::string englishEnding(int x) { + x %= 100; + if (x / 10 == 1) + return "th"; + if (x % 10 == 1) + return "st"; + if (x % 10 == 2) + return "nd"; + if (x % 10 == 3) + return "rd"; + return "th"; +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::string join(_ForwardIterator first, _ForwardIterator last, _Separator separator) { + std::stringstream ss; + bool repeated = false; + for (_ForwardIterator i = first; i != last; i++) { + if (repeated) + ss << separator; + else + repeated = true; + ss << *i; + } + return ss.str(); +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::string join(_ForwardIterator first, _ForwardIterator last) { + return join(first, last, ' '); +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::string join(const _Collection &collection, _Separator separator) { + return join(collection.begin(), collection.end(), separator); +} + +template +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::string join(const _Collection &collection) { + return join(collection, ' '); +} + +/** + * Splits string s by character separator returning exactly k+1 items, + * where k is the number of separator occurrences. + */ +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::vector split(const std::string &s, char separator) { + std::vector result; + std::string item; + for (size_t i = 0; i < s.length(); i++) + if (s[i] == separator) { + result.push_back(item); + item = ""; + } else + item += s[i]; + result.push_back(item); + return result; +} + +/** + * Splits string s by character separators returning exactly k+1 items, + * where k is the number of separator occurrences. + */ +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::vector split(const std::string &s, const std::string &separators) { + if (separators.empty()) + return std::vector(1, s); + + std::vector isSeparator(256); + for (size_t i = 0; i < separators.size(); i++) + isSeparator[(unsigned char) (separators[i])] = true; + + std::vector result; + std::string item; + for (size_t i = 0; i < s.length(); i++) + if (isSeparator[(unsigned char) (s[i])]) { + result.push_back(item); + item = ""; + } else + item += s[i]; + result.push_back(item); + return result; +} + +/** + * Splits string s by character separator returning non-empty items. + */ +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::vector tokenize(const std::string &s, char separator) { + std::vector result; + std::string item; + for (size_t i = 0; i < s.length(); i++) + if (s[i] == separator) { + if (!item.empty()) + result.push_back(item); + item = ""; + } else + item += s[i]; + if (!item.empty()) + result.push_back(item); + return result; +} + +/** + * Splits string s by character separators returning non-empty items. + */ +#ifdef __GNUC__ +__attribute__((const)) +#endif +std::vector tokenize(const std::string &s, const std::string &separators) { + if (separators.empty()) + return std::vector(1, s); + + std::vector isSeparator(256); + for (size_t i = 0; i < separators.size(); i++) + isSeparator[(unsigned char) (separators[i])] = true; + + std::vector result; + std::string item; + for (size_t i = 0; i < s.length(); i++) + if (isSeparator[(unsigned char) (s[i])]) { + if (!item.empty()) + result.push_back(item); + item = ""; + } else + item += s[i]; + + if (!item.empty()) + result.push_back(item); + + return result; +} + +NORETURN void __testlib_expectedButFound(TResult result, std::string expected, std::string found, const char *prepend) { + std::string message; + if (strlen(prepend) != 0) + message = testlib_format_("%s: expected '%s', but found '%s'", + compress(prepend).c_str(), compress(expected).c_str(), compress(found).c_str()); + else + message = testlib_format_("expected '%s', but found '%s'", + compress(expected).c_str(), compress(found).c_str()); + quit(result, message); +} + +NORETURN void __testlib_expectedButFound(TResult result, double expected, double found, const char *prepend) { + std::string expectedString = removeDoubleTrailingZeroes(testlib_format_("%.12f", expected)); + std::string foundString = removeDoubleTrailingZeroes(testlib_format_("%.12f", found)); + __testlib_expectedButFound(result, expectedString, foundString, prepend); +} + +template +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void expectedButFound(TResult result, T expected, T found, const char *prependFormat = "", ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + std::string expectedString = vtos(expected); + std::string foundString = vtos(found); + __testlib_expectedButFound(result, expectedString, foundString, prepend.c_str()); +} + +template<> +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void +expectedButFound(TResult result, std::string expected, std::string found, const char *prependFormat, ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + __testlib_expectedButFound(result, expected, found, prepend.c_str()); +} + +template<> +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void expectedButFound(TResult result, double expected, double found, const char *prependFormat, ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + std::string expectedString = removeDoubleTrailingZeroes(testlib_format_("%.12f", expected)); + std::string foundString = removeDoubleTrailingZeroes(testlib_format_("%.12f", found)); + __testlib_expectedButFound(result, expectedString, foundString, prepend.c_str()); +} + +template<> +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void +expectedButFound(TResult result, const char *expected, const char *found, const char *prependFormat, + ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + __testlib_expectedButFound(result, std::string(expected), std::string(found), prepend.c_str()); +} + +template<> +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void expectedButFound(TResult result, float expected, float found, const char *prependFormat, ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + __testlib_expectedButFound(result, double(expected), double(found), prepend.c_str()); +} + +template<> +#ifdef __GNUC__ +__attribute__ ((format (printf, 4, 5))) +#endif +NORETURN void +expectedButFound(TResult result, long double expected, long double found, const char *prependFormat, ...) { + FMT_TO_RESULT(prependFormat, prependFormat, prepend); + __testlib_expectedButFound(result, double(expected), double(found), prepend.c_str()); +} + +#if __cplusplus > 199711L || defined(_MSC_VER) +template +struct is_iterable { + template + static char test(typename U::iterator *x); + + template + static long test(U *x); + + static const bool value = sizeof(test(0)) == 1; +}; + +template +struct __testlib_enable_if { +}; + +template +struct __testlib_enable_if { + typedef T type; +}; + +template +typename __testlib_enable_if::value, void>::type __testlib_print_one(const T &t) { + std::cout << t; +} + +template +typename __testlib_enable_if::value, void>::type __testlib_print_one(const T &t) { + bool first = true; + for (typename T::const_iterator i = t.begin(); i != t.end(); i++) { + if (first) + first = false; + else + std::cout << " "; + std::cout << *i; + } +} + +template<> +typename __testlib_enable_if::value, void>::type +__testlib_print_one(const std::string &t) { + std::cout << t; +} + +template +void __println_range(A begin, B end) { + bool first = true; + for (B i = B(begin); i != end; i++) { + if (first) + first = false; + else + std::cout << " "; + __testlib_print_one(*i); + } + std::cout << std::endl; +} + +template +struct is_iterator { + static T makeT(); + + typedef void *twoptrs[2]; + + static twoptrs &test(...); + + template + static typename R::iterator_category *test(R); + + template + static void *test(R *); + + static const bool value = sizeof(test(makeT())) == sizeof(void *); +}; + +template +struct is_iterator::value>::type> { + static const bool value = false; +}; + +template +typename __testlib_enable_if::value, void>::type println(const A &a, const B &b) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << std::endl; +} + +template +typename __testlib_enable_if::value, void>::type println(const A &a, const B &b) { + __println_range(a, b); +} + +template +void println(const A *a, const A *b) { + __println_range(a, b); +} + +template<> +void println(const char *a, const char *b) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << std::endl; +} + +template +void println(const T &x) { + __testlib_print_one(x); + std::cout << std::endl; +} + +template +void println(const A &a, const B &b, const C &c) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << " "; + __testlib_print_one(c); + std::cout << std::endl; +} + +template +void println(const A &a, const B &b, const C &c, const D &d) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << " "; + __testlib_print_one(c); + std::cout << " "; + __testlib_print_one(d); + std::cout << std::endl; +} + +template +void println(const A &a, const B &b, const C &c, const D &d, const E &e) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << " "; + __testlib_print_one(c); + std::cout << " "; + __testlib_print_one(d); + std::cout << " "; + __testlib_print_one(e); + std::cout << std::endl; +} + +template +void println(const A &a, const B &b, const C &c, const D &d, const E &e, const F &f) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << " "; + __testlib_print_one(c); + std::cout << " "; + __testlib_print_one(d); + std::cout << " "; + __testlib_print_one(e); + std::cout << " "; + __testlib_print_one(f); + std::cout << std::endl; +} + +template +void println(const A &a, const B &b, const C &c, const D &d, const E &e, const F &f, const G &g) { + __testlib_print_one(a); + std::cout << " "; + __testlib_print_one(b); + std::cout << " "; + __testlib_print_one(c); + std::cout << " "; + __testlib_print_one(d); + std::cout << " "; + __testlib_print_one(e); + std::cout << " "; + __testlib_print_one(f); + std::cout << " "; + __testlib_print_one(g); + std::cout << std::endl; +} + +/* opts */ + +/** + * A struct for a singular testlib opt, containing the raw string value, + * and a boolean value for marking whether the opt is used. + */ +struct TestlibOpt { + std::string value; + bool used; + + TestlibOpt() : value(), used(false) {} +}; + +/** + * Get the type of opt based on the number of `-` at the beginning and the + * _validity_ of the key name. + * + * A valid key name must start with an alphabetical character. + * + * Returns: 1 if s has one `-` at the beginning, that is, "-keyName". + * 2 if s has two `-` at the beginning, that is, "--keyName". + * 0 otherwise. That is, if s has no `-` at the beginning, or has more + * than 2 at the beginning ("---keyName", "----keyName", ...), or the + * keyName is invalid (the first character is not an alphabetical + * character). + */ +size_t getOptType(char *s) { + if (!s || strlen(s) <= 1) + return 0; + + if (s[0] == '-') { + if (isalpha(s[1])) + return 1; + else if (s[1] == '-') + return isalpha(s[2]) ? 2 : 0; + } + + return 0; +} + +/** + * Parse the opt at a given index, and put it into the opts maps. + * + * An opt can has the following form: + * 1) -keyName=value or --keyName=value (ex. -n=10 --test-count=20) + * 2) -keyName value or --keyName value (ex. -n 10 --test-count 20) + * 3) -kNumval or --kNumval (ex. -n10 --t20) + * 4) -boolProperty or --boolProperty (ex. -sorted --tree-only) + * + * Only the second form consumes 2 arguments. The other consumes only 1 + * argument. + * + * In the third form, the key is a single character, and after the key is the + * value. The value _should_ be a number. + * + * In the forth form, the value is true. + * + * Params: + * - argc and argv: the number of command line arguments and the command line + * arguments themselves. + * - index: the starting index of the opts. + * - opts: the map containing the resulting opt. + * + * Returns: the number of consumed arguments to parse the opt. + * 0 if there is no arguments to parse. + * + * Algorithm details: + * TODO. Please refer to the implementation to see how the code handles the 3rd and 4th forms separately. + */ +size_t parseOpt(size_t argc, char *argv[], size_t index, std::map &opts) { + if (index >= argc) + return 0; + + size_t type = getOptType(argv[index]), inc = 1; + if (type > 0) { + std::string key(argv[index] + type), val; + size_t sep = key.find('='); + if (sep != std::string::npos) { + val = key.substr(sep + 1); + key = key.substr(0, sep); + } else { + if (index + 1 < argc && getOptType(argv[index + 1]) == 0) { + val = argv[index + 1]; + inc = 2; + } else { + if (key.length() > 1 && isdigit(key[1])) { + val = key.substr(1); + key = key.substr(0, 1); + } else { + val = "true"; + } + } + } + opts[key].value = val; + } else { + return inc; + } + + return inc; +} + +/** + * Global list containing all the arguments in the order given in the command line. + */ +std::vector __testlib_argv; + +/** + * Global dictionary containing all the parsed opts. + */ +std::map __testlib_opts; + +/** + * Whether automatic no unused opts ensurement should be done. This flag will + * be turned on when `has_opt` or `opt(key, default_value)` is called. + * + * The automatic ensurement can be suppressed when + * __testlib_ensureNoUnusedOptsSuppressed is true. + */ +bool __testlib_ensureNoUnusedOptsFlag = false; + +/** + * Suppress no unused opts automatic ensurement. Can be set to true with + * `suppressEnsureNoUnusedOpts()`. + */ +bool __testlib_ensureNoUnusedOptsSuppressed = false; + +/** + * Parse command line arguments into opts. + * The results are stored into __testlib_argv and __testlib_opts. + */ +void prepareOpts(int argc, char *argv[]) { + if (argc <= 0) + __testlib_fail("Opts: expected argc>=0 but found " + toString(argc)); + size_t n = static_cast(argc); // NOLINT(hicpp-use-auto,modernize-use-auto) + __testlib_opts = std::map(); + for (size_t index = 1; index < n; index += parseOpt(n, argv, index, __testlib_opts)); + __testlib_argv = std::vector(n); + for (size_t index = 0; index < n; index++) + __testlib_argv[index] = argv[index]; +} + +/** + * An utility function to get the argument with a given index. This function + * also print a readable message when no arguments are found. + */ +std::string __testlib_indexToArgv(int index) { + if (index < 0 || index >= int(__testlib_argv.size())) + __testlib_fail("Opts: index '" + toString(index) + "' is out of range [0," + + toString(__testlib_argv.size()) + ")"); + return __testlib_argv[size_t(index)]; +} + +/** + * An utility function to get the opt with a given key . This function + * also print a readable message when no opts are found. + */ +std::string __testlib_keyToOpts(const std::string &key) { + auto it = __testlib_opts.find(key); + if (it == __testlib_opts.end()) + __testlib_fail("Opts: unknown key '" + compress(key) + "'"); + it->second.used = true; + return it->second.value; +} + +template +T optValueToIntegral(const std::string &s, bool nonnegative); + +long double optValueToLongDouble(const std::string &s); + +std::string parseExponentialOptValue(const std::string &s) { + size_t pos = std::string::npos; + for (size_t i = 0; i < s.length(); i++) + if (s[i] == 'e' || s[i] == 'E') { + if (pos != std::string::npos) + __testlib_fail("Opts: expected typical exponential notation but '" + compress(s) + "' found"); + pos = i; + } + if (pos == std::string::npos) + return s; + std::string e = s.substr(pos + 1); + if (!e.empty() && e[0] == '+') + e = e.substr(1); + if (e.empty()) + __testlib_fail("Opts: expected typical exponential notation but '" + compress(s) + "' found"); + if (e.length() > 20) + __testlib_fail("Opts: expected typical exponential notation but '" + compress(s) + "' found"); + int ne = optValueToIntegral(e, false); + std::string num = s.substr(0, pos); + if (num.length() > 20) + __testlib_fail("Opts: expected typical exponential notation but '" + compress(s) + "' found"); + if (!num.empty() && num[0] == '+') + num = num.substr(1); + optValueToLongDouble(num); + bool minus = false; + if (num[0] == '-') { + minus = true; + num = num.substr(1); + } + for (int i = 0; i < +ne; i++) { + size_t sep = num.find('.'); + if (sep == std::string::npos) + num += '0'; + else { + if (sep + 1 == num.length()) + num[sep] = '0'; + else + std::swap(num[sep], num[sep + 1]); + } + } + for (int i = 0; i < -ne; i++) { + size_t sep = num.find('.'); + if (sep == std::string::npos) + num.insert(num.begin() + int(num.length()) - 1, '.'); + else { + if (sep == 0) + num.insert(num.begin() + 1, '0'); + else + std::swap(num[sep - 1], num[sep]); + } + } + while (!num.empty() && num[0] == '0') + num = num.substr(1); + while (num.find('.') != std::string::npos && num.back() == '0') + num = num.substr(0, num.length() - 1); + if (!num.empty() && num.back() == '.') + num = num.substr(0, num.length() - 1); + if ((!num.empty() && num[0] == '.') || num.empty()) + num.insert(num.begin(), '0'); + return (minus ? "-" : "") + num; +} + +template +T optValueToIntegral(const std::string &s_, bool nonnegative) { + std::string s(parseExponentialOptValue(s_)); + if (s.empty()) + __testlib_fail("Opts: expected integer but '" + compress(s_) + "' found"); + T value = 0; + long double about = 0.0; + signed char sign = +1; + size_t pos = 0; + if (s[pos] == '-') { + if (nonnegative) + __testlib_fail("Opts: expected non-negative integer but '" + compress(s_) + "' found"); + sign = -1; + pos++; + } + for (size_t i = pos; i < s.length(); i++) { + if (s[i] < '0' || s[i] > '9') + __testlib_fail("Opts: expected integer but '" + compress(s_) + "' found"); + value = T(value * 10 + s[i] - '0'); + about = about * 10 + s[i] - '0'; + } + value *= sign; + about *= sign; + if (fabsl(value - about) > 0.1) + __testlib_fail("Opts: integer overflow: expected integer but '" + compress(s_) + "' found"); + return value; +} + +long double optValueToLongDouble(const std::string &s_) { + std::string s(parseExponentialOptValue(s_)); + if (s.empty()) + __testlib_fail("Opts: expected float number but '" + compress(s_) + "' found"); + long double value = 0.0; + signed char sign = +1; + size_t pos = 0; + if (s[pos] == '-') { + sign = -1; + pos++; + } + bool period = false; + long double mul = 1.0; + for (size_t i = pos; i < s.length(); i++) { + if (s[i] == '.') { + if (period) + __testlib_fail("Opts: expected float number but '" + compress(s_) + "' found"); + else { + period = true; + continue; + } + } + if (period) + mul *= 10.0; + if (s[i] < '0' || s[i] > '9') + __testlib_fail("Opts: expected float number but '" + compress(s_) + "' found"); + if (period) + value += (s[i] - '0') / mul; + else + value = value * 10 + s[i] - '0'; + } + value *= sign; + return value; +} + +/** + * Return true if there is an opt with a given key. + * + * By calling this function, automatic ensurement for no unused opts will be + * done when the program is finalized. Call suppressEnsureNoUnusedOpts() to + * turn it off. + */ +bool has_opt(const std::string &key) { + __testlib_ensureNoUnusedOptsFlag = true; + return __testlib_opts.count(key) != 0; +} + +/* About the following part for opt with 2 and 3 arguments. + * + * To parse the argv/opts correctly for a give type (integer, floating point or + * string), some meta programming must be done to determine the type of + * the type, and use the correct parsing function accordingly. + * + * The pseudo algorithm for determining the type of T and parse it accordingly + * is as follows: + * + * if (T is integral type) { + * if (T is unsigned) { + * parse the argv/opt as an **unsigned integer** of type T. + * } else { + * parse the argv/opt as an **signed integer** of type T. + * } else { + * if (T is floating point type) { + * parse the argv/opt as an **floating point** of type T. + * } else { + * // T should be std::string + * just the raw content of the argv/opts. + * } + * } + * + * To help with meta programming, some `opt` function with 2 or 3 arguments are + * defined. + * + * Opt with 3 arguments: T opt(true/false is_integral, true/false is_unsigned, index/key) + * + * + The first argument is for determining whether the type T is an integral + * type. That is, the result of std::is_integral() should be passed to + * this argument. When false, the type _should_ be either floating point or a + * std::string. + * + * + The second argument is for determining whether the signedness of the type + * T (if it is unsigned or signed). That is, the result of + * std::is_unsigned() should be passed to this argument. This argument can + * be ignored if the first one is false, because it only applies to integer. + * + * Opt with 2 arguments: T opt(true/false is_floating_point, index/key) + * + The first argument is for determining whether the type T is a floating + * point type. That is, the result of std::is_floating_point() should be + * passed to this argument. When false, the type _should_ be a std::string. + */ + +template +T opt(std::false_type is_floating_point, int index); + +template<> +std::string opt(std::false_type /*is_floating_point*/, int index) { + return __testlib_indexToArgv(index); +} + +template +T opt(std::true_type /*is_floating_point*/, int index) { + return T(optValueToLongDouble(__testlib_indexToArgv(index))); +} + +template +T opt(std::false_type /*is_integral*/, U /*is_unsigned*/, int index) { + return opt(std::is_floating_point(), index); +} + +template +T opt(std::true_type /*is_integral*/, std::false_type /*is_unsigned*/, int index) { + return optValueToIntegral(__testlib_indexToArgv(index), false); +} + +template +T opt(std::true_type /*is_integral*/, std::true_type /*is_unsigned*/, int index) { + return optValueToIntegral(__testlib_indexToArgv(index), true); +} + +template<> +bool opt(std::true_type /*is_integral*/, std::true_type /*is_unsigned*/, int index) { + std::string value = __testlib_indexToArgv(index); + if (value == "true" || value == "1") + return true; + if (value == "false" || value == "0") + return false; + __testlib_fail("Opts: opt by index '" + toString(index) + "': expected bool true/false or 0/1 but '" + + compress(value) + "' found"); +} + +/** + * Return the parsed argv by a given index. + */ +template +T opt(int index) { + return opt(std::is_integral(), std::is_unsigned(), index); +} + +/** + * Return the raw string value of an argv by a given index. + */ +std::string opt(int index) { + return opt(index); +} + +/** + * Return the parsed argv by a given index. If the index is bigger than + * the number of argv, return the given default_value. + */ +template +T opt(int index, const T &default_value) { + if (index >= int(__testlib_argv.size())) { + return default_value; + } + return opt(index); +} + +/** + * Return the raw string value of an argv by a given index. If the index is + * bigger than the number of argv, return the given default_value. + */ +std::string opt(int index, const std::string &default_value) { + return opt(index, default_value); +} + +template +T opt(std::false_type is_floating_point, const std::string &key); + +template<> +std::string opt(std::false_type /*is_floating_point*/, const std::string &key) { + return __testlib_keyToOpts(key); +} + +template +T opt(std::true_type /*is_integral*/, const std::string &key) { + return T(optValueToLongDouble(__testlib_keyToOpts(key))); +} + +template +T opt(std::false_type /*is_integral*/, U, const std::string &key) { + return opt(std::is_floating_point(), key); +} + +template +T opt(std::true_type /*is_integral*/, std::false_type /*is_unsigned*/, const std::string &key) { + return optValueToIntegral(__testlib_keyToOpts(key), false); +} + +template +T opt(std::true_type /*is_integral*/, std::true_type /*is_unsigned*/, const std::string &key) { + return optValueToIntegral(__testlib_keyToOpts(key), true); +} + +template<> +bool opt(std::true_type /*is_integral*/, std::true_type /*is_unsigned*/, const std::string &key) { + if (!has_opt(key)) + return false; + std::string value = __testlib_keyToOpts(key); + if (value == "true" || value == "1") + return true; + if (value == "false" || value == "0") + return false; + __testlib_fail("Opts: key '" + compress(key) + "': expected bool true/false or 0/1 but '" + + compress(value) + "' found"); +} + +/** + * Return the parsed opt by a given key. + */ +template +T opt(const std::string &key) { + return opt(std::is_integral(), std::is_unsigned(), key); +} + +/** + * Return the raw string value of an opt by a given key + */ +std::string opt(const std::string &key) { + return opt(key); +} + +/* Scorer started. */ + +enum TestResultVerdict { + SKIPPED, + OK, + WRONG_ANSWER, + RUNTIME_ERROR, + TIME_LIMIT_EXCEEDED, + IDLENESS_LIMIT_EXCEEDED, + MEMORY_LIMIT_EXCEEDED, + COMPILATION_ERROR, + CRASHED, + FAILED +}; + +std::string serializeVerdict(TestResultVerdict verdict) { + switch (verdict) { + case SKIPPED: return "SKIPPED"; + case OK: return "OK"; + case WRONG_ANSWER: return "WRONG_ANSWER"; + case RUNTIME_ERROR: return "RUNTIME_ERROR"; + case TIME_LIMIT_EXCEEDED: return "TIME_LIMIT_EXCEEDED"; + case IDLENESS_LIMIT_EXCEEDED: return "IDLENESS_LIMIT_EXCEEDED"; + case MEMORY_LIMIT_EXCEEDED: return "MEMORY_LIMIT_EXCEEDED"; + case COMPILATION_ERROR: return "COMPILATION_ERROR"; + case CRASHED: return "CRASHED"; + case FAILED: return "FAILED"; + } + throw "Unexpected verdict"; +} + +TestResultVerdict deserializeTestResultVerdict(std::string s) { + if (s == "SKIPPED") + return SKIPPED; + else if (s == "OK") + return OK; + else if (s == "WRONG_ANSWER") + return WRONG_ANSWER; + else if (s == "RUNTIME_ERROR") + return RUNTIME_ERROR; + else if (s == "TIME_LIMIT_EXCEEDED") + return TIME_LIMIT_EXCEEDED; + else if (s == "IDLENESS_LIMIT_EXCEEDED") + return IDLENESS_LIMIT_EXCEEDED; + else if (s == "MEMORY_LIMIT_EXCEEDED") + return MEMORY_LIMIT_EXCEEDED; + else if (s == "COMPILATION_ERROR") + return COMPILATION_ERROR; + else if (s == "CRASHED") + return CRASHED; + else if (s == "FAILED") + return FAILED; + ensuref(false, "Unexpected serialized TestResultVerdict"); + // No return actually. + return FAILED; +} + +struct TestResult { + int testIndex; + std::string testset; + std::string group; + TestResultVerdict verdict; + double points; + long long timeConsumed; + long long memoryConsumed; + std::string input; + std::string output; + std::string answer; + int exitCode; + std::string checkerComment; +}; + +std::string serializePoints(double points) { + if (std::isnan(points)) + return ""; + else { + char c[64]; + snprintf(c, 64, "%.03lf", points); + return c; + } +} + +double deserializePoints(std::string s) { + if (s.empty()) + return std::numeric_limits::quiet_NaN(); + else { + double result; +#ifdef _MSC_VER + ensuref(sscanf_s(s.c_str(), "%lf", &result) == 1, "Invalid serialized points"); +#else + ensuref(std::sscanf(s.c_str(), "%lf", &result) == 1, "Invalid serialized points"); +#endif + return result; + } +} + +std::string escapeTestResultString(std::string s) { + std::string result; + for (size_t i = 0; i < s.length(); i++) { + if (s[i] == '\r') + continue; + if (s[i] == '\n') { + result += "\\n"; + continue; + } + if (s[i] == '\\' || s[i] == ';') + result += '\\'; + result += s[i]; + } + return result; +} + +std::string unescapeTestResultString(std::string s) { + std::string result; + for (size_t i = 0; i < s.length(); i++) { + if (s[i] == '\\' && i + 1 < s.length()) { + if (s[i + 1] == 'n') { + result += '\n'; + i++; + continue; + } else if (s[i + 1] == ';' || s[i + 1] == '\\') { + result += s[i + 1]; + i++; + continue; + } + } + result += s[i]; + } + return result; +} + +std::string serializeTestResult(TestResult tr) { + std::string result; + result += std::to_string(tr.testIndex); + result += ";"; + result += escapeTestResultString(tr.testset); + result += ";"; + result += escapeTestResultString(tr.group); + result += ";"; + result += serializeVerdict(tr.verdict); + result += ";"; + result += serializePoints(tr.points); + result += ";"; + result += std::to_string(tr.timeConsumed); + result += ";"; + result += std::to_string(tr.memoryConsumed); + result += ";"; + result += escapeTestResultString(tr.input); + result += ";"; + result += escapeTestResultString(tr.output); + result += ";"; + result += escapeTestResultString(tr.answer); + result += ";"; + result += std::to_string(tr.exitCode); + result += ";"; + result += escapeTestResultString(tr.checkerComment); + return result; +} + +TestResult deserializeTestResult(std::string s) { + std::vector items; + std::string t; + for (size_t i = 0; i < s.length(); i++) { + if (s[i] == '\\') { + t += s[i]; + if (i + 1 < s.length()) + t += s[i + 1]; + i++; + continue; + } else { + if (s[i] == ';') { + items.push_back(t); + t = ""; + } else + t += s[i]; + } + } + items.push_back(t); + + ensuref(items.size() == 12, "Invalid TestResult serialization: expected exactly 12 items"); + + TestResult tr; + size_t pos = 0; + tr.testIndex = stoi(items[pos++]); + tr.testset = unescapeTestResultString(items[pos++]); + tr.group = unescapeTestResultString(items[pos++]); + tr.verdict = deserializeTestResultVerdict(items[pos++]); + tr.points = deserializePoints(items[pos++]); + tr.timeConsumed = stoll(items[pos++]); + tr.memoryConsumed = stoll(items[pos++]); + tr.input = unescapeTestResultString(items[pos++]); + tr.output = unescapeTestResultString(items[pos++]); + tr.answer = unescapeTestResultString(items[pos++]); + tr.exitCode = stoi(items[pos++]); + tr.checkerComment = unescapeTestResultString(items[pos++]); + + return tr; +} + +std::vector readTestResults(std::string fileName) { + std::ifstream stream; + stream.open(fileName.c_str(), std::ios::in); + ensuref(stream.is_open(), "Can't read test results file '%s'", fileName.c_str()); + std::vector result; + std::string line; + while (getline(stream, line)) + if (!line.empty()) + result.push_back(deserializeTestResult(line)); + stream.close(); + return result; +} + +std::function)> __testlib_scorer; + +struct TestlibScorerGuard { + ~TestlibScorerGuard() { + if (testlibMode == _scorer) { + std::vector testResults; + while (!inf.eof()) { + std::string line = inf.readLine(); + if (!line.empty()) + testResults.push_back(deserializeTestResult(line)); + } + inf.readEof(); + printf("%.3f\n", __testlib_scorer(testResults)); + } + } +} __testlib_scorer_guard; + +void registerScorer(int argc, char *argv[], std::function)> scorer) { + /* Suppress unused. */ + (void)(argc), (void)(argv); + + __testlib_ensuresPreconditions(); + + testlibMode = _scorer; + __testlib_set_binary(stdin); + + inf.init(stdin, _input); + inf.strict = false; + + __testlib_scorer = scorer; +} + +/* Scorer ended. */ + +/** + * Return the parsed opt by a given key. If no opts with the given key are + * found, return the given default_value. + * + * By calling this function, automatic ensurement for no unused opts will be + * done when the program is finalized. Call suppressEnsureNoUnusedOpts() to + * turn it off. + */ +template +T opt(const std::string &key, const T &default_value) { + if (!has_opt(key)) { + return default_value; + } + return opt(key); +} + +/** + * Return the raw string value of an opt by a given key. If no opts with the + * given key are found, return the given default_value. + * + * By calling this function, automatic ensurement for no unused opts will be + * done when the program is finalized. Call suppressEnsureNoUnusedOpts() to + * turn it off. + */ +std::string opt(const std::string &key, const std::string &default_value) { + return opt(key, default_value); +} + +/** + * Check if all opts are used. If not, __testlib_fail is called. + * Should be used after calling all opt() function calls. + * + * This function is useful when opt() with default_value for checking typos + * in the opt's key. + */ +void ensureNoUnusedOpts() { + for (const auto &opt: __testlib_opts) { + if (!opt.second.used) { + __testlib_fail(testlib_format_("Opts: unused key '%s'", compress(opt.first).c_str())); + } + } +} + +void suppressEnsureNoUnusedOpts() { + __testlib_ensureNoUnusedOptsSuppressed = true; +} + +void TestlibFinalizeGuard::autoEnsureNoUnusedOpts() { + if (__testlib_ensureNoUnusedOptsFlag && !__testlib_ensureNoUnusedOptsSuppressed) { + ensureNoUnusedOpts(); + } +} + +TestlibFinalizeGuard testlibFinalizeGuard; +#endif + +#ifdef __GNUC__ +__attribute__ ((format (printf, 1, 2))) +#endif +std::string testlib_format_(const char *fmt, ...) { + FMT_TO_RESULT(fmt, fmt, result); + return result; +} + +std::string testlib_format_(const std::string fmt, ...) { + FMT_TO_RESULT(fmt, fmt.c_str(), result); + return result; +} + +#if (__cplusplus >= 202002L && __has_include()) || __cpp_lib_format +template +std::string format(const char* fmt, Args&&... args) { + size_t size = size_t(std::snprintf(nullptr, 0, fmt, args...) + 1); + std::vector buffer(size); + std::snprintf(buffer.data(), size, fmt, args...); + return std::string(buffer.data()); +} + +template +std::string format(const std::string fmt, Args&&... args) { + size_t size = size_t(std::snprintf(nullptr, 0, fmt.c_str(), args...) + 1); + std::vector buffer(size); + std::snprintf(buffer.data(), size, fmt.c_str(), args...); + return std::string(buffer.data()); +} +#else +#ifdef __GNUC__ +__attribute__ ((format (printf, 1, 2))) +#endif +std::string format(const char *fmt, ...) { + FMT_TO_RESULT(fmt, fmt, result); + return result; +} + +std::string format(const std::string fmt, ...) { + FMT_TO_RESULT(fmt, fmt.c_str(), result); + return result; +} +#endif + +#endif