Codeforces Solutions to some of the questions on the Codeforces website. Solutions Problem Solution Problem Statement Difficulty 1A.cpp Theatre Square 1000 4A.cpp Watermelon 800 4C.cpp Registration system 1300 25A.cpp IQ test 1300 32B.cpp Borze 800 34B.cpp Sale 900 41A.cpp Translation 800 50A.cpp Domino piling 800 58A.cpp Chat room 1000 59A.cpp Word 800 61A.cpp Ultra-Fast Mathematician 800 69A.cpp Young Physicist 1000 71A.cpp Way Too Long Words 800 96A.cpp Football 900 110A.cpp Nearly Lucky Number 800 112A.cpp Petya and Strings 800 116A.cpp Tram 800 118A.cpp String Task 1000 122A.cpp Lucky Division 1000 131A.cpp cAPS lOCK 1000 133A.cpp HQ9+ 900 136A.cpp Presents 800 141A.cpp Amusing Joke 800 144A.cpp Arrival of the General 800 148A.cpp Insomnia cure 800 158A.cpp Next Round 800 158B.cpp Taxi 1100 160A.cpp Twins 900 200B.cpp Drinks 800 208A.cpp Dubstep 900 228A.cpp Is your horseshoe on the other hoof? 800 230A.cpp Dragons 1000 230B.cpp T-primes 1300 231A.cpp Team 800 236A.cpp Boy or Girl 800 263A.cpp Beautiful Matrix 800 266A.cpp Stones on the Table 800 266B.cpp Queue at the School 800 268A.cpp Games 800 271A.cpp Beautiful Year 800 279B.cpp Books 1400 281A.cpp Word Capitalization 800 282A.cpp Bit++ 800 318A.cpp Even Odds 900 337A.cpp Puzzles 900 339A.cpp Helpful Maths 800 339B.cpp Xenia and Ringroad 1000 344A.cpp Magnets 800 363B.cpp Fence 1100 368B.cpp Sereja and Suffixes 1100 405A.cpp Gravity Flip 900 443A.cpp Anton and Letters 800 451A.cpp Game With Sticks 900 451B.cpp Sort the Array 1300 459B.cpp Pashmak and Flowers 1300 466A.cpp Cheap Travel 1200 466C.cpp Number of Ways 1700 467A.cpp George and Accommodation 800 469A.cpp I Wanna Be the Guy 800 479A.cpp Expression 1000 486A.cpp Calculating Function 800 489B.cpp BerSU Ball 1200 489C.cpp Given Length and Sum of Digits... 1400 492B.cpp Vanya and Lanterns 1200 514A.cpp Chewbaсca and Number 1200 514B.cpp Han Solo and Lazer Gun 1400 519B.cpp A and B and Compilation Errors 1100 520A.cpp Pangram 800 520B.cpp Two Buttons 1400 546A.cpp Soldier and Bananas 800 580A.cpp Kefa and First Steps 900 580C.cpp Kefa and Park 1500 617A.cpp Elephant 800 656F.cpp Ace It! 1900 677A.cpp Vanya and Fence 800 705A.cpp Hulk 800 734A.cpp Anton and Danik 800 785A.cpp Anton and Polyhedrons 800 791A.cpp Bear and Big Brother 800 977A.cpp Wrong Subtraction 800 996A.cpp Hit the Lottery 800 996B.cpp World Cup 1300 1030A.cpp In Search of an Easy Problem 800 1056A.cpp Determine Line 800 1056B.cpp Divide Candies 1600 1061A.cpp Coins 800 1061B.cpp Views Matter 1400 1080A.cpp Petya and Origami 800 1080B.cpp Margarite and the best present 900 1080C.cpp Masha and two friends 1500 1082A.cpp Vasya and Book 1200 1082B.cpp Vova and Trophies 1600 1104A.cpp Splitting into digits 800 1104B.cpp Game with string 1200 1106A.cpp Lunar New Year and Cross Counting 800 1106B.cpp Lunar New Year and Food Ordering 1500 1106C.cpp Lunar New Year and Number Division 900 1106D.cpp Lunar New Year and a Wander 1500 1108A.cpp Two distinct points 800 1108B.cpp Divisors of Two Integers 1100 1108C.cpp Nice Garland 1300 1108D.cpp Diverse Garland 1400 1114A.cpp Got Any Grapes? 800 1114B.cpp Yet Another Array Partitioning Task 1500 1201B.cpp Zero Array 1500 1234A.cpp Equalize Prices Again 800 1234B1.cpp Social Network (easy version) 1000 1234B2.cpp Social Network (hard version) 1300 1234C.cpp Pipes 1500 1234D.cpp Distinct Characters Queries 1600 1265A.cpp Beautiful String 1000 1265B.cpp Beautiful Numbers 1300 1265C.cpp Beautiful Regional Contest 1500 1265D.cpp Beautiful Sequence 1900 1269A.cpp Equation 800 1269B.cpp Modulo Equality 1500 1269C.cpp Long Beautiful Integer 1700 1269D.cpp Domino for Young 2000 1270A.cpp Card Game 800 1270B.cpp Interesting Subarray 1200 1270C.cpp Make Good 1400 1271A.cpp Suits 800 1271B.cpp Blocks 1300 1271C.cpp Shawarma Tent 1300 1271D.cpp Portals 2100 1271E.cpp Common Number 2100 1272A.cpp Three Friends 900 1272B.cpp Snow Walking Robot 1200 1272C.cpp Yet Another Broken Keyboard 1200 1272D.cpp Remove One Element 1500 1277A.cpp Happy Birthday, Polycarp! 1000 1277B.cpp Make Them Odd 1200 1277C.cpp As Simple as One and Two 1400 1278A.cpp Shuffle Hashing 1000 1278B.cpp A and B 1500 1278C.cpp Berry Jam 1700 1278D.cpp Segment Tree 2100 1281A.cpp Suffix Three 800 1281B.cpp Azamon Web Services 1600 1281C.cpp Cut and Paste 1700 1281D.cpp Beingawesomeism 1800 1282A.cpp Temporarily unavailable 900 1282B1.cpp K for the Price of One (Easy Version) 1400 1282B2.cpp K for the Price of One (Hard Version) 1600 1282C.cpp Petya and Exam 1800 1283A.cpp Minutes Before the New Year 800 1283B.cpp Candies Division 900 1283C.cpp Friends and Gifts 1500 1283D.cpp Christmas Trees 1800 1283E.cpp New Year Parties 1800 1284A.cpp New Year and Naming 800 1284B.cpp New Year and Ascent Sequence 1400 1284C.cpp New Year and Permutation 1600 1285A.cpp Mezo Playing Zoma 800 1285B.cpp Just Eat It! 1300 1285C.cpp Fadi and LCM 1400 1285D.cpp Dr. Evil Underscores 1900 1287A.cpp Angry Students 800 1287B.cpp Hyperset 1500 1287C.cpp Garland 1800 1287D.cpp Numbers on Tree 1800 1296A.cpp Array with Odd Sum 800 1296B.cpp Food Buying 900 1296C.cpp Yet Another Walking Robot 1500 1296D.cpp Fight with Monsters 1500 1296E1.cpp String Coloring (easy version) 1800 1296E2.cpp String Coloring (hard version) 2000 1328A.cpp Divisibility Problem 800 1328B.cpp K-th Beautiful String 1300 1328C.cpp Ternary XOR 1200 1328D.cpp Carousel 1800 1328E.cpp Tree Queries 1900 1330A.cpp Dreamoon and Ranking Collection 900 1330B.cpp Dreamoon Likes Permutations 1400 1330C.cpp Dreamoon Likes Coloring 1800 1330D.cpp Dreamoon Likes Sequences 1700 1331A.cpp Is it rated? 1331B.cpp Limericks 1331C.cpp ...And after happily lived ever they 1331D.cpp Again? 1333A.cpp Little Artem 1000 1333B.cpp Kind Anton 1100 1333C.cpp Eugene and an array 1700 1333D.cpp Challenges in school №41 2100 1333E.cpp Road to 1600 2400 1333F.cpp Kate and imperfection 2200 1334A.cpp Level Statistics 1200 1334B.cpp Middle Class 1100 1334C.cpp Circle of Monsters 1600 1335A.cpp Candies and Two Sisters 800 1335B.cpp Construct the String 900 1335C.cpp Two Teams Composing 1100 1335D.cpp Anti-Sudoku 1300 1335E1.cpp Three Blocks Palindrome (easy version) 1700 1335E2.cpp Three Blocks Palindrome (hard version) 1800 1335F.cpp Robots on a Grid 2200 1339A.cpp Filling Diamonds 900 1339B.cpp Sorted Adjacent Differences 1200 1339C.cpp Powered Addition 1500 1339D.cpp Edge Weight Assignment 1800 1343C.cpp Alternating Subsequence 1200 1352C.cpp K-th Not Divisible by n 1200 1353C.cpp Board Moves 1000 1360B.cpp Honest Coach 800 1365B.cpp Trouble Sort 1300 1368A.cpp C+= 800 1370D.cpp Odd-Even Subsequence 2000 1373A.cpp Donut Shops 1000 1373B.cpp 01 Game 900 1373C.cpp Pluses and Minuses 1300 1373D.cpp Maximum Sum on Even Positions 1600 1373E.cpp Sum of Digits 2200 1374A.cpp Required Remainder 800 1374B.cpp Multiply by 2, divide by 6 900 1374B.cpp Multiply by 2, divide by 6 900 1374C.cpp Move Brackets 1000 1374D.cpp Zero Remainder Array 1400 1374E1.cpp Reading Books (easy version) 1600 1385B.cpp Restore the Permutation by Merger 800 1397A.cpp Juggling Letters 800 1397B.cpp Power Sequence 1500 1397C.cpp Multiples of Length 1600 1397D.cpp Stoned Game 1800 1398C.cpp Good Subarrays 1600 1399A.cpp Remove Smallest 800 1399B.cpp Gifts Fixing 800 1399C.cpp Boats Competition 1399D.cpp Binary String To Subsequences 1399E1.cpp Weights Division (easy version) 1399E2.cpp Weights Division (hard version) 1472B.cpp Fair Division 800 1475B.cpp New Year's Number 900 1509A.cpp Average Height 800 1509B.cpp TMT Document 1100 1512A.cpp Spy Detected! 800 1512B.cpp Almost Rectangle 800 1512C.cpp A-B Palindrome 1200 1512D.cpp Corrupted Array 1200 1512E.cpp Permutation by Sum 1600 1512F.cpp Education 1900 1512G.cpp Short Task 1700 1520B.cpp Ordinary Numbers 800 1527A.cpp And Then There Were K 800 1527B1.cpp Palindrome Game (easy version) 1200 1527B2.cpp Palindrome Game (hard version) 1900 1527C.cpp Sequence Pair Weight 1600 1538B.cpp Friends and Candies 800
