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Merge pull request #26 from Dersei/master
Added Fibonacci Search
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using csharp_algorithms; | ||
| using fibonaccisearch; | ||
| using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
|
|
||
| namespace Tests | ||
| { | ||
| [TestClass] | ||
| public class FibonacciSearchTest | ||
| { | ||
| [TestMethod] | ||
| public void TestMethod1() | ||
| { | ||
| var nodes = new List<Node> | ||
| { | ||
| new Node(1), | ||
| new Node(21), | ||
| new Node(13), | ||
| new Node(91), | ||
| new Node(100), | ||
| new Node(81), | ||
| new Node(42), | ||
| new Node(12), | ||
| new Node(11), | ||
| new Node(211), | ||
| new Node(113), | ||
| new Node(911), | ||
| new Node(10), | ||
| new Node(811), | ||
| new Node(412), | ||
| new Node(2), | ||
| new Node(83), | ||
| new Node(43), | ||
| new Node(23), | ||
| new Node(131), | ||
| new Node(231), | ||
| new Node(133), | ||
| new Node(913), | ||
| new Node(1003), | ||
| new Node(81330), | ||
| new Node(4233), | ||
| new Node(233), | ||
| new Node(1033) | ||
| }; | ||
|
|
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| var fibonacciSearch = new FibonacciSearch(nodes); | ||
|
|
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| var testValueTrue = new Node(42); | ||
| var testValueFalse = new Node(111); | ||
| var testValueLastPosition = new Node(81330); | ||
|
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| var resultTrue = fibonacciSearch.Search(testValueTrue); | ||
| var resultFalse = fibonacciSearch.Search(testValueFalse); | ||
| var resultLastPosition = fibonacciSearch.Search(testValueLastPosition); | ||
|
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| Assert.IsTrue(resultTrue); | ||
| Assert.IsFalse(resultFalse); | ||
| Assert.IsTrue(resultLastPosition); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| using csharp_algorithms; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace fibonaccisearch | ||
| { | ||
| public class FibonacciSearch | ||
| { | ||
| private readonly IEnumerable<Node> _list; | ||
|
|
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| public FibonacciSearch(IEnumerable<Node> list) | ||
| { | ||
| //Ordering list in ascending order | ||
| _list = list.OrderBy(n => n.Number); | ||
| } | ||
|
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||
|
|
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| public bool Search(Node value) | ||
| { | ||
| var n = _list.Count(); | ||
|
|
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| //Setting first three Fibonacci numbers | ||
| var fib1 = 0; | ||
| var fib2 = 1; | ||
| var fibSum = 1; | ||
|
|
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| //Searching for the smallest number in Fibonacci sequence that is equal or greater than n | ||
| while (fibSum < n) | ||
| { | ||
| fib2 = fib1; | ||
| fib1 = fibSum; | ||
| fibSum = fib1 + fib2; | ||
| } | ||
|
|
||
| //Setting starting position for searching | ||
| var offset = -1; | ||
|
|
||
| //Searching as long as there are still items in list | ||
| while (fibSum > 1) | ||
| { | ||
| //Checking if index is in bounds of list | ||
| int i = Math.Min(offset + fib2, n - 1); | ||
|
|
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| //If value at given index is lower or greater than searched one, the offset is updated | ||
| if (_list.ElementAt(i).Number < value.Number) | ||
| { | ||
| fibSum = fib1; | ||
| fib1 = fib2; | ||
| fib2 = fibSum - fib1; | ||
| offset = i; | ||
| } | ||
| else if (_list.ElementAt(i).Number > value.Number) | ||
| { | ||
| fibSum = fib2; | ||
| fib1 = fib1 - fib2; | ||
| fib2 = fibSum - fib1; | ||
| } | ||
| //If values match methods returns true | ||
| else return true; | ||
| } | ||
| return false; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| using System.Reflection; | ||
| using System.Runtime.CompilerServices; | ||
| using System.Runtime.InteropServices; | ||
|
|
||
| // Ogólne informacje o zestawie są kontrolowane poprzez następujący | ||
| // zestaw atrybutów. Zmień wartości tych atrybutów, aby zmodyfikować informacje | ||
| // powiązane z zestawem. | ||
| [assembly: AssemblyTitle("fibonaccisearch")] | ||
| [assembly: AssemblyDescription("")] | ||
| [assembly: AssemblyConfiguration("")] | ||
| [assembly: AssemblyCompany("")] | ||
| [assembly: AssemblyProduct("fibonaccisearch")] | ||
| [assembly: AssemblyCopyright("Copyright © 2018")] | ||
| [assembly: AssemblyTrademark("")] | ||
| [assembly: AssemblyCulture("")] | ||
|
|
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| // Ustawienie elementu ComVisible na wartość false sprawia, że typy w tym zestawie są niewidoczne | ||
| // dla składników COM. Jeśli potrzebny jest dostęp do typu w tym zestawie z | ||
| // COM, ustaw wartość true dla atrybutu ComVisible tego typu. | ||
| [assembly: ComVisible(false)] | ||
|
|
||
| // Następujący identyfikator GUID jest identyfikatorem biblioteki typów w przypadku udostępnienia tego projektu w modelu COM | ||
| [assembly: Guid("92db864e-df8a-470c-9746-69b7c41ab80c")] | ||
|
|
||
| // Informacje o wersji zestawu zawierają następujące cztery wartości: | ||
| // | ||
| // Wersja główna | ||
| // Wersja pomocnicza | ||
| // Numer kompilacji | ||
| // Rewizja | ||
| // | ||
| // Możesz określić wszystkie wartości lub użyć domyślnych numerów kompilacji i poprawki | ||
| // przy użyciu symbolu „*”, tak jak pokazano poniżej: | ||
| // [assembly: AssemblyVersion("1.0.*")] | ||
| [assembly: AssemblyVersion("1.0.0.0")] | ||
| [assembly: AssemblyFileVersion("1.0.0.0")] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| <?xml version="1.0" encoding="utf-8"?> | ||
| <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> | ||
| <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" /> | ||
| <PropertyGroup> | ||
| <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> | ||
| <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> | ||
| <ProjectGuid>{92DB864E-DF8A-470C-9746-69B7C41AB80C}</ProjectGuid> | ||
| <OutputType>Library</OutputType> | ||
| <AppDesignerFolder>Properties</AppDesignerFolder> | ||
| <RootNamespace>fibonaccisearch</RootNamespace> | ||
| <AssemblyName>fibonaccisearch</AssemblyName> | ||
| <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion> | ||
| <FileAlignment>512</FileAlignment> | ||
| <Deterministic>true</Deterministic> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> | ||
| <DebugSymbols>true</DebugSymbols> | ||
| <DebugType>full</DebugType> | ||
| <Optimize>false</Optimize> | ||
| <OutputPath>bin\Debug\</OutputPath> | ||
| <DefineConstants>DEBUG;TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> | ||
| <DebugType>pdbonly</DebugType> | ||
| <Optimize>true</Optimize> | ||
| <OutputPath>bin\Release\</OutputPath> | ||
| <DefineConstants>TRACE</DefineConstants> | ||
| <ErrorReport>prompt</ErrorReport> | ||
| <WarningLevel>4</WarningLevel> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <Reference Include="System" /> | ||
| <Reference Include="System.Core" /> | ||
| <Reference Include="System.Xml.Linq" /> | ||
| <Reference Include="System.Data.DataSetExtensions" /> | ||
| <Reference Include="Microsoft.CSharp" /> | ||
| <Reference Include="System.Data" /> | ||
| <Reference Include="System.Net.Http" /> | ||
| <Reference Include="System.Xml" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <Compile Include="FibonacciSearch.cs" /> | ||
| <Compile Include="Properties\AssemblyInfo.cs" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <ProjectReference Include="..\csharp-algorithms\csharp-algorithms.csproj"> | ||
| <Project>{3511528E-8696-40B8-85AB-97456347A497}</Project> | ||
| <Name>csharp-algorithms</Name> | ||
| </ProjectReference> | ||
| </ItemGroup> | ||
| <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" /> | ||
| </Project> |