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OnlineJudge記事まとめ (この記事を編集する[管理者用])

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現在,記事[2011-11-12 Sat 06:00]ぐらいまで反映しているつもりです.
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TopCoder

Single Round Match

SRM211
 → DIV1 EASY/DIV2 MEDIUM - grafixCorrupt
 → DIV2 EASY - grafixClick
 → DIV2 HARD - grafixGlobs
SRM229
 → DIV1 EASY/DIV2 MEDIUM - Cafeteria
 → DIV2 EASY - Highscore
 → DIV2 HARD - SnowClearing
SRM247
 → DIV2 MEDIUM - FracCount
 → DIV2 HARD - Speller
SRM248
 → DIV1 EASY/DIV2 MEDIUM - WordPattern
 → DIV2 EASY - SyllableCounter
SRM249
 → DIV2 EASY - ChatTranscript
 → DIV2 MEDIUM - FieldPairParse
 → DIV2 HARD - TableSeating
SRM250
 → DIV1 EASY/DIV2 MEDIUM - LanguageRecognition
 → DIV2 EASY - ColorCode
 → DIV2 HARD - Acronyms
SRM251
 → DIV1 EASY/DIV2 MEDIUM - SMS
 → DIV2 EASY - Elections
SRM266
 → DIV1 EASY/DIV2 MEDIUM - ExploringEuropa
SRM275 DIV1
SRM276 DIV1
SRM277 DIV1
SRM278 DIV1
SRM281 DIV1
SRM283 DIV1
SRM284 DIV1
 → DIV2 HARD - SnakeCount
SRM285
 → DIV1 EASY/DIV2 MEDIUM - SentenceSplitting
 → DIV1 EASY/DIV2 MEDIUM - SentenceSplitting (DP解法)
 → DIV1 MEDIUM - RobotTesting
 → DIV1 HARD - Distincter
 → DIV2 HARD - OperationsArrangement
SRM286
 → DIV1 EASY/DIV2 MEDIUM - ExtraBall
 → DIV2 HARD - MonomorphicTyper
SRM287 DIV1
SRM290
 → DIV1 EASY/DIV2 MEDIUM - BrokenClock
SRM292
 → DIV1 EASY/DIV2 MEDIUM - Abacus
SRM295
 → DIV1 EASY/DIV2 MEDIUM - BuildBridge
SRM318
 → DIV1 EASY/DIV2 MEDIUM - ReturnToHome
 → DIV1 MEDIUM - CyclicGame
 → DIV1 HARD - BiggestRectangleHard
SRM319
 → DIV1 EASY/DIV2 MEDIUM - BusSeating
 → DIV1 MEDIUM - ConstructBST
 → DIV1 HARD - Manhattan
SRM330
 → DIV1 EASY/DIV2 MEDIUM - Arrows
SRM333
 → DIV1 EASY/DIV2 MEDIUM - BirthNumbersValidator
SRM369
 → DIV1 EASY/DIV2 MEDIUM - BeautifulString
SRM394
 → DIV1 EASY/DIV2 MEDIUM - RoughStrings
 → DIV2 EASY - MountainWalk
 → DIV2 HARD - ProperDivisors
SRM401
 → DIV1 EASY/DIV2 MEDIUM - FIELDDiagrams
SRM405 DIV1
SRM406 DIV1
SRM407 DIV1
SRM408 DIV1
SRM409 DIV1
SRM411 DIV1
SRM412 DIV1
SRM413 DIV1
SRM414 DIV1
SRM415 DIV1
SRM416 DIV1
SRM417 DIV1
SRM418 DIV1
SRM419 DIV1
SRM420 DIV1
SRM421 DIV1
SRM422 DIV1
SRM423 DIV1
SRM424 DIV1
SRM425 DIV1
SRM426 DIV1
SRM427 DIV1
SRM428 DIV1
SRM429 DIV1
SRM430 DIV1
SRM431 DIV1/DIV2
SRM432 DIV1/DIV2
SRM433 DIV1
SRM434 DIV1
SRM436 DIV1
SRM437 DIV1 (DIV1 参加記録)
SRM438 DIV1 (DIV1 参加記録)
SRM441 DIV1 (DIV1 参加記録)
SRM442 DIV1 (DIV1 参加記録)
SRM443 DIV1 (DIV1 参加記録)
 → DIV1 MEDIUM - BinaryFlips (O(1)解法)
SRM444 DIV1 (DIV1 参加記録)
SRM445 DIV1 (DIV1 参加記録)
SRM446 DIV1 (DIV1 参加記録)
SRM449 (DIV1 参加記録)
SRM450 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - OrderedNim
 → DIV1 MEDIUM - StrongEconomy
SRM451 (DIV1 参加記録)
SRM452 (DIV1 参加記録)
SRM453.5 (DIV1 参加記録)
SRM454 (DIV1 参加記録)
SRM455 (DIV1 参加記録)
 → DIV2 MEDIUM - EasySequence
SRM456 (DIV1 参加記録)
SRM457 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - TheTriangleBothDivs
 → DIV1 MEDIUM - TheHexagonsDivOne
 → DIV2 HARD - TheHexagonsDivTwo
SRM458 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - BouncingBalls
 → DIV1 MEDIUM - NewCoins
 → DIV2 HARD - ProductTriplet
SRM459 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - Inequalities
 → DIV1 MEDIUM - NumberPyramids
 → DIV2 EASY - RecursiveFigures
 → DIV2 HARD - ParkAmusement (DP解法)
 → DIV2 HARD - ParkAmusement (隣接行列解法)
SRM460 (DIV1 参加記録)
 → DIV1 EASY - TheQuestionsAndAnswersDivOne
 → DIV1 MEDIUM - TheFansAndMeetingsDivOne
 → DIV2 EASY - TheQuestionsAndAnswersDivTwo
 → DIV2 MEDIUM - TheFansAndMeetingsDivTwo
 → DIV2 HARD - TheCitiesAndRoadsDivTwo (全探索解法)
SRM461 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ColoringRectangle
 → DIV1 MEDIUM - BuildingCities
 → DIV2 HARD - NameInput
SRM462 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - AgeEncoding
 → DIV1 MEDIUM - CandyBox
 → DIV2 EASY - Archery
 → DIV2 HARD - SteeplechaseTrack
SRM463 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - RabbitNumbering
 → DIV1 MEDIUM/DIV2 HARD - Nisoku
 → DIV2 EASY - BunnyPuzzle
SRM464 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ColorfulStrings
 → DIV1 MEDIUM - ColorfulDecoration
 → DIV1 HARD - ColorfulMaze
 → DIV2 EASY - ColorfulBoxesAndBalls
 → DIV2 HARD - ColorfulMazeTwo
SRM466 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - LotteryCheating
 → DIV1 MEDIUM - LotteryPyaterochka
 → DIV2 EASY - LotteryTicket
 → DIV2 HARD - MatrixGame
SRM467 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - LateProfessor
 → DIV1 MEDIUM - SuperSum
 → DIV2 EASY - ShorterSuperSum
 → DIV2 HARD - MazeOnFire
SRM468 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - T9
 → DIV1 MEDIUM - RoadOrFlightHard
 → DIV1 HARD - MallSecurity
 → DIV2 EASY - RoadOrFlightEasy
 → DIV2 HARD - Gifts
SRM469 (DIV1 参加記録)
 → DIV1 EASY - TheMoviesLevelOneDivOne
 → DIV1 MEDIUM - TheMoviesLevelTwoDivOne
SRM470 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - DoorsGame
 → DIV1 MEDIUM - DrawingLines
 → DIV2 EASY - LinearTravellingSalesman
 → DIV2 HARD - ActivateGame
SRM471 (DIV1 参加記録)
 → DIV1 EASY - PrimeSequences
 → DIV1 MEDIUM - ThirteenHard
 → DIV1 HARD - ConstructPolyline
 → DIV2 EASY - PrimeContainers
 → DIV2 MEDIUM - EllysPlaylists
 → DIV2 HARD - Thirteen
SRM472 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - PotatoGame
 → DIV1 MEDIUM - TwoSidedCards
 → DIV2 EASY - ColorfulTilesEasy
 → DIV2 HARD - RectangularIsland
SRM473 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - SequenceOfCommands
 → DIV1 MEDIUM - RightTriangle
 → DIV1 HARD - RooksParty
 → DIV2 EASY - OnTheFarmDivTwo
 → DIV2 HARD - ChildlessNumbers
SRM474 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - RouteIntersection
 → DIV1 MEDIUM - TreesCount
 → DIV2 EASY - PalindromesCount
 → DIV2 HARD - SquaresCovering
SRM475 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - RabbitStepping
 → DIV1 MEDIUM - RabbitIncreasing
 → DIV1 HARD - RabbitProgramming
 → DIV2 EASY - RabbitVoting
 → DIV2 HARD - RabbitJumping
SRM476 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - Badgers
 → DIV1 MEDIUM - FriendTour
 → DIV2 EASY - MatrixShiftings
 → DIV2 HARD - SubAnagrams
SRM477 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - Islands
 → DIV1 MEDIUM - PythTriplets
 → DIV2 EASY - VacationTime
 → DIV2 HARD - CarelessSecretary
SRM478 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - CarrotJumping
 → DIV1 MEDIUM - KiwiJuice
SRM479 (DIV1 参加記録)
 → DIV1 EASY - TheCoffeeTimeDivOne
 → DIV1 MEDIUM - TheAirTripDivOne
SRM480 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - InternetSecurity
 → DIV1 MEDIUM - NetworkSecurity
 → DIV2 EASY - Cryptography
 → DIV2 HARD - SignalIntelligence
SRM481 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ChickenOracle
 → DIV1 MEDIUM - BatchSystemRoulette
 → DIV1 HARD - TicketPrinters
 → DIV2 EASY - CircleMarket
 → DIV2 HARD - BatchSystem
SRM482 (DIV1 参加記録)
 → DIV1 EASY - LockersDivOne
 → DIV1 MEDIUM - HanoiGoodAndBad
 → DIV2 EASY - AverageAverage
 → DIV2 MEDIUM - LockersDivTwo
 → DIV2 HARD - BaseConfusion
SRM483 (DIV1 参加記録)
 → DIV1 EASY - BestApproximationDiv1
 → DIV1 MEDIUM - Bribes
 → DIV1 HARD - Sheep
 → DIV2 EASY - DigitHoles
 → DIV2 MEDIUM - MovieSeating
 → DIV2 HARD - BestApproximationDiv2
SRM484 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - RabbitNumber
 → DIV1 MEDIUM - PuyoPuyo
 → DIV2 EASY - NumberMagicEasy
 → DIV2 HARD - CubeColoring
SRM485 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - AfraidOfEven
 → DIV1 MEDIUM RectangleAvoidingColoring
 → DIV2 EASY - MicrowaveSelling
 → DIV2 HARD - RectangleAvoidingColoringEasy
SRM486 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - OneRegister
 → DIV1 MEDIUM - QuickSort
 → DIV1 HARD - BatmanAndRobin
SRM487 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - BunnyComputer
SRM488 (DIV1 参加記録)
SRM489 (DIV1 参加記録)
 → DIV1 EASY - BallsConverter
 → DIV1 MEDIUM - DiceRotation
SRM490 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - Starport
 → DIV1 MEDIUM - QuickT9
SRM491 (DIV1 参加記録)
 → DIV1 EASY - FoxMakingDice
 → DIV1 MEDIUM - PrefixTree
 → DIV2 MEDIUM - FoxMakingDiceEasy
SRM492 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - TimeTravellingGardener
SRM493 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - StonesGame
 → DIV1 MEDIUM - AmoebaCode
SRM494 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - Painting
 → DIV1 MEDIUM/DIV2 HARD - AlternatingLane
SRM495 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ColorfulCards
SRM496 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ColoredStrokes
 → DIV1 MEDIUM - OneDimensionalBalls
 → DIV2 EASY - AnagramFree
SRM497 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - PermutationSignature
 → DIV1 MEDIUM - CssRules
SRM498 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - FoxSequence
 → DIV1 MEDIUM - FoxStones
 → DIV1 HARD - FoxJumping
 → DIV2 EASY - AdditionGame
 → DIV2 HARD - NinePuzzle
SRM499 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ColorfulRabbits
 → DIV1 MEDIUM - WhiteSpaceEditing
 → DIV1 HARD - ImpossibleGame
SRM501 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - FoxPlayingGame
 → DIV1 MEDIUM/DIV2 HARD - FoxAverageSequence
 → DIV2 EASY - FoxProgression
SRM502 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - TheLotteryBothDivs
 → DIV1 MEDIUM - TheProgrammingContestDivOne
 → DIV2 EASY - TheProgrammingContestDivTwo
SRM503 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - ToastXToast
 → DIV1 MEDIUM - KingdomXCitiesandVillages
 → DIV2 EASY - ToastXRaspberry
SRM504 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - MathContest
 → DIV1 MEDIUM - AlgridTwo
SRM505 (DIV1 参加記録)
 → DIV1 EASY/DIV2 HARD - RectangleArea
SRM506 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - SlimeXSlimesCity
 → DIV1 MEDIUM - SlimeXGrandSlimeAuto
SRM504.5 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - TheNumbersWithLuckyLastDigit
 → DIV1 MEDIUM - TheJackpotDivOne
 → DIV1 HARD - TheTicketsDivOne
SRM507 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - CubeStickers
 → DIV2 EASY - CubeAnts
SRM508 (DIV1 参加記録)
 → DIV1 EASY/DIV2 MEDIUM - DivideAndShift
 → DIV1 MEDIUM - YetAnotherORProblem / DIV2 HARD - YetAnotherORProblem2
 → DIV1 HARD - BarbarianInvasion2
SRM520
 → DIV1 EASY/DIV2 MEDIUM - SRMCodingPhase
SRM521
 → DIV1 EASY/DIV2 MEDIUM - MissingParentheses
 → DIV1 MEDIUM - RangeSquaredSubsets
 → DIV1 HARD - Chimney
 → DIV2 EASY - RedAndGreen
SRM522
 → DIV1 EASY - RowAndCoins / DIV2 MEDIUM - RowAndManyCoins
 → DIV1 MEDIUM - CorrectMultiplication / DIV2 HARD - CorrectMultiplicationTwo

Marathon Match

Marathon Match 58 - IsolatedPrimes (参加記録)
Marathon Match 59 - BookSelection (参加記録)
Marathon Match 60 - PolymerPacking (参加記録)
Marathon Match 61 / Open 2010 Round 1 - Planarity (参加記録)
Marathon Match 62 / Open 2010 Round 2 - CellularAutomaton (参加記録)
Marathon Match 63 / Open 2010 Round 3 - SubgraphIsomorphism (参加記録)

TopCoder Open Algorithm

2009 Round 1
2009 Round 2
2009 Round 3
2009 Round 4 (参加記録)
2010 Qualification Round 1A
 → EASY - DNAMatching
 → MEDIUM - Palindromize3
 → HARD - MegadiamondHunt
2010 Qualification Round 1
 → EASY - GirlsAndBoys
 → MEDIUM - RobotSimulation
 → HARD - SequenceMerger
2010 Qualification Round 2 (TopCoderニコ生オープン 第1回 参加記録)
 → EASY - JingleRingle
 → MEDIUM - FuzzyLife
 → HARD - HandlesSpelling
2010 Qualification Round 3 (TopCoderニコ生オープン 第2回 参加記録)
 → EASY - SumRectangle
 → MEDIUM - WhatsThisChord
 → HARD - CuttingGlass
2010 Round 1 (参加記録)
 → EASY - EqualizeStrings
 → MEDIUM - TwoRegisters
 → HARD - VacationTours
2010 Round 2 (参加記録)
 → EASY - SnowPlow
 → MEDIUM - RepresentableNumbers
 → HARD - BreakingChocolate
2010 Round 3 (参加記録)
 → EASY - SieveOfEratosthenes
 → MEDIUM - TheChroniclesOfAmber
 → HARD - Passwords
2010 Round 4 (参加記録)
 → EASY - BankLottery
 → MEDIUM - ProductsOfDigits
2010 Round 5 (参加記録)
 → MEDIUM - LongJourney
2011 Qualification Round 2 (TopCoderニコ生オープン 参加記録)
 → EASY - BlackWhiteMagic
 → MEDIUM - KindAndCruel
 → HARD - FoxIntegerLevelThree
2011 Qualification Round 3 (TopCoderニコ生オープン 参加記録)
 → EASY - AllButOneDivisor
 → MEDIUM - CoinMachinesGame
 → HARD - ComplementMachine2D

Codeforces

Beta Round

Beta Round #3 (参加記録)
 → A問題 - Shortest path of the king
 → B問題 - Lorry
 → C問題 - Tic-tac-toe
Beta Round #5 (参加記録)
 → A問題 - Chat Server's Outgoing Traffic
 → B問題 - Center Alignment
 → C問題 - Longest Regular Bracket Sequence
 → D問題 - Follow Traffic Rules
 → E問題 - Bindian Signalizing
Beta Round #7 (参加記録)
 → A問題 - Kalevitch and Chess
 → B問題 - Memory Manager
 → C問題 - Line
 → D問題 - Palindrome Degree
Beta Round #8 (参加記録)
 → A問題 - Train and Peter
 → B問題 - Obsession with Robots
 → C問題 - Looking for Order
Beta Round #10 (参加記録)
 → A問題 - Power Consumption Calculation
 → B問題 - Cinema Cashier
 → C問題 - Digital Root
Beta Round #11 (参加記録)
 → A問題 - Increasing Sequence
 → B問題 - Jumping Jack
 → C問題 - How Many Squares?
 → D問題 - A Simple Task
Beta Round #13 (参加記録)
 → A問題 - Numbers
 → B問題 - Letter A
 → C問題 - Sequence
Beta Round #14
 → D問題 - Two Paths
 → E問題 - Camels
Beta Round #15 (参加記録)
 → A問題 - Cottage Village
 → B問題 - Laser
 → C問題 - Industrial Nim
 → D問題 - Map
Beta Round #16
 → E問題 - Fish
Beta Round #17 (参加記録)
 → A問題 - Noldbach problem
 → B問題 - Hierarchy
 → C問題 - Balance
 → D問題 - Notepad
Beta Round #19 (参加記録)
 → A問題 - World Football Cup
 → B問題 - Checkout Assistant
Beta Round #23 (参加記録)
 → A問題 - You're Given a String...
 → B問題 - Party
 → C問題 - Oranges and Apples
Beta Round #24 (参加記録)
 → A問題 - Ring road
 → B問題 - F1 Champions
 → C問題 - Sequence of points
 → D問題 - Broken robot
 → E問題 - Berland collider
Beta Round #25
 → D問題 - Roads not only in Berland
Beta Round #26 (参加記録)
 → A問題 - Almost Prime
 → B問題 - Regular Bracket Sequence
 → C問題 - Parquet
 → D問題 - Tickets
 → E問題 - Multithreading
Beta Round #28 (参加記録)
 → A問題 - Bender Problem
 → B問題 - pSort
 → C問題 - Bath Queue
Beta Round #33 (参加記録)
 → A問題 - What is for dinner?
 → B問題 - String Problem
 → C問題 - Wonderful Randomized Sum
 → D問題 - Knights
Beta Round #36 (参加記録)
 → A問題 - Extra-terrestrial Intelligence
 → B問題 - Fractal
 → C問題 - Bowls
 → D問題 - New Game with a Chess Piece
Beta Round #37 (参加記録)
 → A問題 - Towers
 → B問題 - Computer Game
 → C問題 - Old Berland Language
 → D問題 - Lesson Timetable
Beta Round #41 (参加記録)
 → A問題 - Guilty - to the kitchen!
 → B問題 - Game of chess unfinished
 → C問題 - Safe cracking
 → D問題 - Strange town
Beta Round #43 (参加記録)
 → A問題 - Ball Game
 → B問題 - T-shirts from Sponsor
 → C問題 - Hamsters and Tigers
 → D問題 - Parking Lot
 → E問題 - Comb
Beta Round #45 (参加記録)
 → A問題 - Rock-paper-scissors
 → B問題 - Land Lot
 → C問題 - The Race
 → D問題 - Permutations
Beta Round #51 (参加記録)
 → A問題 - Flea travel
 → B問題 - Smallest number
 → C問題 - Pie or die
 → D問題 - Beautiful numbers
Beta Round #53 (参加記録)
 → A問題 - Square Earth?
 → B問題 - Martian Architecture
 → C問題 - Array
Beta Round #56 (参加記録)
 → A問題 - Where Are My Flakes?
 → B問題 - Serial Time!
 → C問題 - Mushroom Strife
Beta Round #69 (DVI1 参加記録)
 → DIV1 A問題/DIV2 C問題 - Heroes
 → DIV1 B問題/DIV2 D問題 - Falling Anvils
 → DIV1 C問題/DIV2 E問題 - Beavermuncher-0xFF
Beta Round #71 (参加記録)
 → A問題 - Bus Game
 → B問題 - Colorful Field
 → C問題 - Beaver
Beta Round #72 (参加記録)
 → DIV1 A問題/DIV2 B問題 - Magical Array
 → DIV1 B問題/DIV2 D問題 - Doctor
 → DIV1 C問題/DIV2 E問題 - Track
 → DIV1 D問題 - Numbers
Beta Round #73
 → DIV1 A問題/DIV2 C問題 - Trains
 → DIV1 B問題/DIV2 D問題 - Vasya and Types
 → DIV1 C問題/DIV2 E問題 - Interesting Game
 → DIV1 D問題 - Beautiful Road
Beta Round #74
 → DIV1 A問題/DIV2 C問題 - Robbery
 → DIV1 B問題/DIV2 D問題 - Widget Library
 → DIV1 C問題/DIV2 E問題 - Chip Play
Beta Round #75
 → DIV1 A問題/DIV2 C問題 - Newspaper Headline
 → DIV1 B問題/DIV2 D問題 - Queue
 → DIV1 C問題/DIV2 E問題 - Ski Base
 → DIV1 D問題 - Grocer's Problem
Beta Round #92
 → DIV1 A問題/DIV2 C問題 - Prime Permutation
 → DIV1 B問題/DIV2 D問題 - Squares
 → DIV1 C問題/DIV2 E問題 - Brackets
 → DIV1 D問題 - String
Beta Round #93
 → DIV1 A問題/DIV2 C問題 - Hot Bath
 → DIV1 B問題/DIV2 D問題 - Password
 → DIV1 C問題/DIV2 E問題 - E-reader Display
 → DIV1 D問題 - Fibonacci Sums

Yandex Open

Yandex Open 2011 Qualification 1 (参加記録)
 → A問題 - Plug-in
 → B問題 - Sequence Formatting
 → C問題 - Average Score
 → D問題 - Polycarps Picture Gallery

その他

Testing Round #1
 → B問題 - Right Triangles

codechef

December 2010 Challenge
January 2011 Challenge
 → 2問目 - Chess Pushing Game
 → 3問目 - Count Relations
 → 4問目 - Flu Shot Lineup
 → 5問目 - Restaurant Expansion
 → 6問目 - Splitting Giant Subs (チャレンジ形式)
January 2011 Cook-Off
 → 1問目 - Chef team
 → 3問目 - Holes in the text
 → 4問目 - Time of collisions
 → 5問目 - Whole submatrix
February 2011 Challenge
 → 1問目 - Bogosort
 → 2問目 - Coloring Colorable Graphs (チャレンジ形式)
 → 3問目 - Counting Terms
 → 4問目 - Glass Measurement
 → 5問目 - Milestones
 → 6問目 - Rush Hour
February 2011 Cook-Off
 → 1問目 - Breaking Into Atoms
 → 2問目 - Dance Floor Energy
 → 4問目 - Integer Sequences
 → 5問目 - Three Way Communications
April 2011 Challenge
 → 1問目 - Central Point
 → 2問目 - Generalized Independent Sets
 → 3問目 - Graphs in Euclidean Space (チャレンジ形式)
 → 4問目 - Gravel
 → 5問目 - Number Game Revisited
 → 6問目 - Rectangles Counting
April 2011 Cook-Off
 → 1問目 - The Grand Cook Off
 → 3問目 - Internet Media Types
 → 5問目 - A Prime Conjecture
June 2011 Cook-Off
 → 3問目 - Correctness of Knight Move
 → 5問目 - Super-plane
September 2011 Cook-Off
 → 1問目 - Digit Rotation
 → 2問目 - Hotel Bytelandia
 → 3問目 - Last Digit Sum
 → 4問目 - Target Practice

UVa Online Judge

230 (Borrowers)
273 (Jack Straws)
383 (Shipping Routes)
550 (Multiplying by Rotation)
556 (Amazing)
687 (Lattice Practices)
688 (Mobile Phone Coverage)
690 (Pipeline Scheduling)
10001 (Garden of Eden)
10011 (Where Can You Hide?)
10092 (The Problem with the Problem Setter)
10097 (The Color Game)
10126 (Zipf's Law)
10136 (Chocolate Chip Cookies)
10141 (Request for Proposal)
10143 (Loan)
10169 (Urn-ball Probabilities!)
10203 (Snow Clearing)
10251 (Min-Max Cake)
10257 (Dick and Jane)
10290 ({Sum+=i++} to Reach N)
10477 (The Hybrid Knight)
10503 (The dominoes solitaire)
10510 (Cactus)
10536 (Game of Euler)
10543 (Traveling Politician)
10557 (XYZZY)
10562 (Undraw the Trees)
10563 (Least Squares)
10872 (Triangles)
10937 (Blackbeard the Pirate)
11087 (Divisibility Testing)
11256 (Repetitive Multiple)
11419 (SAM I AM)
11447 - 11455 (VI PROGRAMMING OLYMPIADS IN MURCIA 2008)
11456 - 11460 (Waterloo Local Spring 2008)
11461 - 11470 (A Malaysian Contest)
11471 - 11480 (Next Generation Contest 5)
11481 - 11490 (ACM ICPC::Regional Warmup 1 (Easy version))
11491 - 11500 (Brazilian National Contest)
11501 - 11505 (Waterloo ACM Programming Contest Fall 1)
 → 11504 (Dominos)
11506 - 11514 (XXII Colombian Programming Contest)
11515 - 11519 (Waterloo ACM Programming Contest Fall 2)
11520 - 11528 (ACM ICPC::Regional Warmup 2)
11529 - 11537 (Another Bangladeshi contest)
 → 11531 (Solve the Broken Maze)
11538 - 11546 (BUET:: CSE Day Programming Contest 2008)
 → 11542 (Square)
 → 11546 (Olympic Swimming)
11547 - 11554 (U Calgary Local contest)
11555 - 11564 (One more high level contest)
11565 - 11571 (Contest of Newbies V)
 → 11571 (Simple Equations - Extreme!!)
11572 - 11576 (Pre-warmup contest)
11577 - 11586 (Another high quality contest)
11587 (Brick Game)
11588 (Image Coding)
11590 (Prefix Lookup)
11591 (Bulb Inside a Grid)
11593 (Fractions)
11594 (All Pairs Maximum Flow)
11596 - 11604 (World Finals Warmup II)
11605 - 11613 (The first contest of the new season)
 → 11605 (Lights inside a 3d Grid)
 → 11606 (Atoms)
 → 11608 (No Problem)
 → 11609 (Teams)
 → 11610 (Reverse Prime)
 → 11611 (Colored Tiles)
 → 11612 (Sultan and Khairun Shundori)
 → 11613 (Acme Corporation)
11614 - 11622 (VII Programming Olympiads in Murcia)
 → 11614 (Etruscan Warriors Never Play Chess)
 → 11615 (Family Tree)
 → 11616 (Roman Numerals)
 → 11617 (An Odd Love)
 → 11618 (The Amazing Triangle Counting Machine)
 → 11619 (SPAM! (or not))
 → 11620 (City of Egocentrics)
 → 11621 (Small Factors)
 → 11622 (Le Compte est Bon)
11623 - 11627 (Waterloo Local Spring 2009)
 → 11623 (Tic Tac Toe)
 → 11624 (Fire!)
 → 11625 (Nice Prefixes)
 → 11626 (Convex Hull)
 → 11627 (Slalom)
11628 - 11635 (University of Ulm Local Contest)
 → 11628 (Another lottery)
 → 11629 (Ballot evaluation)
 → 11631 (Dark roads)
 → 11632 (Elias gamma coding)
 → 11633 (Food portion size)
 → 11634 (Generate random numbers)
 → 11635 (Hotel booking)
11636 - 11645 (Yet another Bangladeshi Contest)
 → 11636 (Hello World!)
 → 11639 (Guard the Land)
 → 11643 (Knight Tour)
 → 11645 (Bits)
11646 - 11655 (Once Again! A Bangladeshi Contest)
 → 11646 (Athletics Track)
 → 11648 (Divide The Land)
 → 11650 (Mirror Clock)
 → 11651 (Krypton Number System)
 → 11654 (Arithmetic Subsequence)
 → 11655 (Waterland)
11656 - 11665 (XXIII Colombian Programming Contest)
 → 11656 (Message in the Enemy Territory)
 → 11657 (Rational Billiard)
 → 11658 (Best Coalitions)
 → 11659 (Informants)
 → 11660 (Look-and-Say sequences)
 → 11661 (Burger Time?)
 → 11662 (Triangular Grid)
 → 11663 (GrayInc)
 → 11664 (Langton's Ant)
 → 11665 (Chinese Ink)
11666 - 11675 (Regional Warmup 1)
 → 11666 (Logarithms)
 → 11667 (Income Tax Hazard II)
 → 11668 (How Many Teams)
 → 11669 (Non Decreasing Prime Sequence)
 → 11670 (Physics Experiment)
 → 11671 (Sign of Matrix)
 → 11673 (Enemy at the Gateway)
 → 11675 (Happy Friends)
11676 - 11683 (Brazilian National Contest 2009)
 → 11676 (Deadly Attack)
 → 11677 (Alarm Clock)
 → 11678 (Cards' Exchange)
 → 11679 (Sub-prime)
 → 11680 (Dragster)
 → 11681 (Tower for Cellular Telephony)
 → 11683 (Laser Sculpture)
11684 - 11688 (Waterloo ACM Programming Contest Fall 1)
 → 11686 (Pick up sticks)
 → 11687 (Digits)
11689 - 11698 (Nordic Collegiate Programming Contest NCPC 2009)
 → 11689 (Soda Surpler)
 → 11690 (Money Matters)
 → 11691 (Allergy Test)
 → 11692 (Rain Fall)
 → 11697 (Playfair Cipher)
11699 - 11703 (Waterloo ACM Programming Contest Fall 1)
 → 11699 (Rooks)
 → 11700 (Pipes)
 → 11701 (Cantor)
 → 11702 (Meltdown)
 → 11703 (sqrt log sin)
11704 - 11712 (CUPCAM 2009)
 → 11704 (Caper pizza)
 → 11705 (Grasshopper)
 → 11706 (Party Night)
 → 11707 (Pachinko)
 → 11708 (Lexicographical ranking)
 → 11709 (Trust groups)
 → 11710 (Expensive subway)
 → 11711 (Turing)
 → 11712 (Gnirut)
11713 - 11722 (IIUPC 2009)
 → 11713 (Abstract Names)
 → 11714 (Blind Sorting)
 → 11715 (Car)
 → 11716 (Digital Fortress)
 → 11717 (Energy Saving Microcontroller)
 → 11718 (Fantasy of a Summation)
 → 11719 (Gridland Airports)
 → 11720 (How Many Ways)
 → 11721 (Instant View of Big Bang)
 → 11722 (Joining with Friend)
11723 - 11732 (Alkhawarizmi Programming Contest 2009)
 → 11723 (Numbering Roads)
 → 11724 (Evaluate the Expression)
 → 11725 (Colorful Board)
 → 11727 (Cost Cutting)
 → 11728 (Alternate Task)
 → 11729 (Commando War)
 → 11730 (Number Transformation)
 → 11731 (Ex-circles)
 → 11732 (strcmp() Anyone?)
11733 - 11741 (A Bangladeshi Contest)
 → 11733 (Airports)
 → 11734 (Big Number of Teams will Solve This)
 → 11735 (Corner the Queens)
 → 11736 (Debugging RAM)
 → 11737 (Extreme Primitive Society)
 → 11739 (Giving Candies)
 → 11741 (Ignore the Blocks)
11742 - 11751 (A Canadian Contest)
 → 11742 (Social Constraints)
 → 11743 (Credit Check)
 → 11744 (Parallel Carry Adder)
 → 11747 (Heavy Cycle Edges)
 → 11748 (Rigging Elections)
 → 11749 (Poor Trade Advisor)
 → 11751 (Installing Diagnostic Software)
11752 - 11760 (World Finals Warmup I)
 → 11752 (The Super Powers)
 → 11753 (Creating Palindrome)
 → 11754 (Code Feat)
 → 11755 (Table Tennis)
 → 11756 (Bounded by Lines)
 → 11757 (Winger Trial)
 → 11758 (Left Right)
 → 11759 (IBM Fencing)
 → 11760 (Brother Arif, Please feed us!)
11761 - 11770 (World Finals Warmup II)
 → 11761 (Super Heronian Triangle)
 → 11762 (Race to 1)
 → 11764 (Jumping Mario)
 → 11765 (Component Placement)
 → 11766 (Racing Car Computer)
 → 11768 (Lattice Point or Not)
 → 11769 (All Souls Night)
 → 11770 (Lighting Away)
11771 - 11779 (National Programming Contest of Bangladesh at SUST)
 → 11773 (King's Wish)
 → 11774 (Doom's Day)
 → 11775 (Unique Story)
 → 11776 (Oh Your Royal Greediness!)
 → 11777 (Automate the Grades)
 → 11778 (Graph Coloring in HSL)
 → 11779 (Lost File)
11780 - 11785 (Smartmatic CONNECT IV)
 → 11780 (Miles 2 Km)
 → 11781 (Books)
 → 11782 (Optimal Cut)
 → 11783 (Nails)
 → 11784 (Escape)
 → 11785 (Hypercube)
11786 - 11793 (VIII Programming Olympiads in Murcia)
 → 11786 (Global Raining at Bididibus)
 → 11787 (Numeral Hieroglyphs)
 → 11788 (The League Will Be Decided Tomorrow!)
 → 11789 (Texas Hold'em Poker Solitaire)
 → 11790 (Murcia's Skyline)
 → 11792 (Krochanska is Here!)
 → 11793 (Electoral Districts)
11794 - 11803 (A Contest from Dinajpur, Bangladesh)
 → 11795 (Mega Man's Mission)
 → 11796 (Dog Distance)
 → 11797 (Drutojan Express)
 → 11798 (Colorful Board 2)
 → 11799 (Horror Dash)
 → 11800 (Determine the Shape)
 → 11801 (A Problemsetter Blind with Emotion)
 → 11802 (All Your Bases Belong to Us)
 → 11803 (The Great Merger)
11804 - 11812 (A Contest from BUBT, Bangladesh)
 → 11804 (Argentina)
 → 11805 (Bafana Bafanaa)
 → 11806 (Cheerleaders)
 → 11808 (Ensuring Victory)
 → 11809 (Floating-Point Numbers)
 → 11812 (Innovative Procession Management)
11813 - 11817 (Waterloo Local Summer 2010)
 → 11813 (Shopping)
 → 11814 (Stack Machine)
 → 11815 (Ideas)
 → 11816 (HST)
 → 11817 (Tunnelling the Earth)
11818 - 11829 (One more National Programming Contest 2010)
 → 11818 (Mouse & a Cheese)
 → 11820 (Warp Speed)
 → 11821 (High-Precision Number)
 → 11823 (Two Longest Paths)
 → 11824 (A Minimum Land Price)
 → 11825 (Hackers' Crackdown)
 → 11826 (Shuffle)
 → 11827 (Maximum GCD)
 → 11828 (Palindrome Again)
 → 11829 (L's in a Circle)
11830 - 11840 (Brazilian National Contest 2010)
 → 11830 (Contract Revision)
 → 11831 (Sticker Collector Robot)
 → 11832 (Account Book)
 → 11833 (Route Change)
 → 11834 (Elevator)
 → 11835 (Formula 1)
 → 11836 (Star War)
 → 11837 (Musical Plagiarism)
 → 11838 (Come and Go)
 → 11839 (Optical Reader)
 → 11840 (Tic-tac-toe)
11841 - 11848 (XXIV Colombian Programming Contest)
 → 11841 (Y-game)
 → 11842 (Flatland)
 → 11843 (Guessing Game)
 → 11844 (The Melding Plague)
 → 11845 (Preferential Romance)
 → 11846 (Finding Seats Again)
 → 11847 (Cut the Silver Bar)
 → 11848 (Cargo Trains)
11849 - 11853 (Waterloo Local 2010, Fall 1)
 → 11849 (CD)
 → 11850 (Alaska)
 → 11851 (Celebrity Split)
 → 11852 (Knight's Trip)
11854 - 11858 (Waterloo Local 2010, Fall 2)
 → 11854 (Egypt)
 → 11855 (Buzzwords)
 → 11856 (Ferry Loading V)
 → 11857 (Driving Range)
 → 11858 (Frosh Week)
11859 - 11867 (Regional Warmup Contest 2010)
 → 11859 (Division Game)
 → 11860 (Document Analyzer)
 → 11861 (Explosion)
 → 11863 (Prime Game)
 → 11864 (Probability Calculation)
 → 11865 (Stream My Contest)
 → 11866 (Triangle)
 → 11867 (Politeness)
11868 - 11876 (Anupam Bhattacharjee Memorial Contest)
 → 11869 (SOAP Response)
 → 11870 (Antonyms)
 → 11871 (New Land)
 → 11872 (Where to Run)
 → 11873 (Gift Packing)
 → 11874 (Travel Company)
 → 11875 (Brick Game)
 → 11876 (N + NOD (N))
11877 - 11887 (The Sixth Hunan Collegiate Programming Contest Semilive)
 → 11877 (The Coco-Cola Store)
 → 11878 (Homework Checker)
 → 11879 (Multiple of 17)
 → 11880 (Ball in a Rectangle)
 → 11881 (Internal Rate of Return)
 → 11882 (Biggest Number)
 → 11883 (Repairing a Road)
 → 11884 (A Shooting Game)
 → 11885 (Number of Battlefields)
11888 - 11898 (2010 AUT ACM-ICPC Local Contest)
 → 11888 (Abnormal 89's)
 → 11889 (Benefit)
 → 11890 (Calculus Simplified)
 → 11891 (Deep in Jungles)
 → 11892 (ENimEN)
 → 11894 (Genius MJ)
 → 11898 (Killer Problem)
11899 - 11908 (A National Bangladeshi Contest)
 → 11899 (Writing the Whole pi)
 → 11900 (Boiled Eggs)
 → 11902 (Dominator)
 → 11903 (e-Friends)
 → 11904 (One Unit Machine)
 → 11905 (Map Coloring)
 → 11906 (Knight in a War Grid)
 → 11907 (Collision of Bacteria)
 → 11908 (Skyscraper)
11909 - 11914 (Sixth Contest of Newbies)
 → 11909 (Soya Milk)
 → 11910 (Closest Fractions)
 → 11911 (Farther or Closer)
 → 11912 (Chutes and Ladders)
 → 11913 (Tape Recording)
11925 - 11935 (Alberta Collegiate Programming Contest, ACPC 2010)
 → 11925 (Generating Permutations)
 → 11926 (Multitasking)
 → 11927 (Games Are Important)
 → 11928 (The Busy Dog)
 → 11930 (Rectangles)
 → 11931 (Maze Escape)
 → 11932 (Net Profit)
 → 11933 (Splitting Numbers)
 → 11934 (Magic Formula)
 → 11935 (Through the Desert)
11951 - 11976 (Huge Easy Contest II)
 → 11951 (Area)
 → 11952 (Arithmetic)
 → 11953 (Battleships)
 → 11954 (Binary Calculator)
 → 11955 (Binomial Theorem)
 → 11956 (Brainfuck)
 → 11957 (Checkers)
 → 11958 (Coming Home)
 → 11959 (Dice)
 → 11960 (Divisor Game)
 → 11961 (DNA)
 → 11962 (DNA II)
 → 11963 (Emigration)
 → 11964 (Equation)
 → 11965 (Extra Spaces)
 → 11966 (Galactic Bonding)
 → 11967 (Hic-Hac-Hoe)
 → 11968 (In The Airport)
 → 11969 (LAMApbo)
 → 11970 (Lucky Numbers)
 → 11971 (Polygon)
 → 11972 (Round Trip)
 → 11973 (Sierpinski Carpet)
 → 11974 (Switch The Lights)
 → 11975 (Tele-loto)
 → 11976 (Time Deposit)
11977 - 11986 (A Contest dedicated to Renat Mullakhanov (rem))
 → 11977 (Story of Tomisu Ghost)
 → 11978 (Fukushima Nuclear Blast)
 → 11979 (Hamming Base)
 → 11980 (Mad Scientist)
 → 11981 (Corrupted Friendship)
 → 11984 (A Change in Thermal Unit)
 → 11986 (Save from Radiation)
11987 - 11998 (Rujia Liu's Present 3: A datastructure contest celebrating the 100th anniversary of Tsinghua University)
 → 11987 (Almost Union-Find)
 → 11988 (Broken Keyboard (a.k.a. Beiju Text))
 → 11991 (Easy Problem from Rujia Liu?)
 → 11992 (Fast Matrix Operations)
 → 11995 (I Can Guess the Data Structure!)
 → 11997 (K Smallest Sums)
11999 - 12008 (World Finals Warmup II)
 → 11999 (Unlock)
 → 12000 (K-Transformed Permutations)
 → 12001 (UVa Panel Discussion)
 → 12002 (Happy Birthday)
 → 12004 (Bubble Sort)
 → 12005 (Find Solutions)
 → 12008 (Emotional Bishop)
12009 - 12018 (Celebration for the 106th Anniversary of Fudan University (1905-2011) & Warmup for ACM/ICPC 2011 World Finals)
 → 12009 (Avaricious Maryanna)
 → 12010 (Boring Homework)
 → 12011 (Complete the Set)
 → 12012 (Detection of Extraterrestrial)
 → 12013 (Entertainment)
 → 12014 (Fudan Extracurricular Lives)
 → 12015 (Google is Feeling Lucky)
 → 12016 (Herbicide)
 → 12017 (Imitation)
 → 12018 (Juice Extractor)
12028 - 12039 (Modified National Programming Contest of Bangladesh)
 → 12028 (A Gift from the Setter)
 → 12029 (Flying Spaceships)
 → 12030 (Help the Winners)
 → 12032 (The Monkey and the Oiled Bamboo)
 → 12034 (Race)
 → 12036 (Stable Grid)
 → 12037 (Musical Chair)
 → 12039 (Goldbach's Cardinality)
12040 - 12049 (Next generation Contest 6)
 → 12040 (Again Lucky Numbers)
 → 12041 (BFS (Binary Fibonacci String))
 → 12042 (Colorful Eggs)
 → 12043 (Divisors)
 → 12045 (Fun with Strings)
 → 12046 (Great Numbers)
 → 12047 (Highest Paid Toll)
 → 12048 (Inhabitants)
 → 12049 (Just Prune The List)
12289 - 12299 (The Seventh Hunan Collegiate Programming Contest Semilive)
 → 12289 (One-Two-Three)
 → 12290 (Counting Game)
 → 12291 (Polyomino Composer)
 → 12293 (Box Game)
 → 12294 (RPG battles)
 → 12295 (Optimal Symmetric Paths)
 → 12298 (Super Poker II)
 → 12299 (RMQ with Shifts)
12315 - 12324 (XXV Colombian Programming Contest)
 → 12316 (Sewing Buttons with Grandma)
 → 12317 (Document Compression)
 → 12318 (Digital Roulette)
 → 12319 (Edgetown's Traffic Jams)
 → 12320 (Flight Control)
 → 12321 (Gas Stations)
 → 12322 (Handgun Shooting Sport)
 → 12323 (Inspecting Radars)
 → 12324 (Philip J. Fry Problem)
12325 - 12334 (Asia Shanghai Regional Semilive hosted by Fudan University)
 → 12325 (Zombie's Treasure Chest)
 → 12326 (Yummy Triangular Pizza)
 → 12327 (Revenge of Fibonacci)
12335 - 12345 (ACM ICPC Regional Warmup 2011)
 → 12335 (Lexicographic Order)
 → 12336 (Knights in the Zombie Land)
 → 12337 (Bob's Beautiful Balls)
 → 12338 (Anti-Rhyme Pairs)
 → 12339 (Help Hermione)
 → 12341 (Next to Never)
 → 12342 (Tax Calculator)
 → 12343 (Strange Simulation)
 → 12345 (Dynamic len(set(a[L:R])))
12346 - 12355 (ACM-ICPC Asia Phuket Regional Semilive)
 → 12346 (Water Gate Management)
 → 12347 (Binary Search Tree)
 → 12348 (Fun Coloring)
 → 12349 (Twin Apparent Primes!!)
 → 12350 (Queen Game)
 → 12351 (Coalescing Continents)
 → 12355 (Consecutive Sums)

LiveArchive

2190 - 2190 (Oceania - South Pacific - 2008/2009, A)
2404 (Beehives)
2407 (Super Star)
2426 (Multiple Morse Matches, Decoding Morse Sequences)
2434 - 2434 (Oceania - South Pacific - 2008/2009, B)
2436 - 2439 (Oceania - South Pacific - 2008/2009, C-F)
2450 (Team Them Up!)
2543 (Door Man)
2545 (Blue Gene, Jr.)
2547 (World's Worst Bus Schedule)
2958 (Code Formatting)
3050 (Blackjack)
3186 (Make a Sequence)
3190 (Dice Puzzle)
3192 (Inherit the Spheres)
3269 - 3278 (World Finals - Shanghai - 2004/2005)
 → 3270 (Simplified GSM Network)
 → 3271 (The Traveling Judges Problem)
 → 3272 (cNteSahruPfefrlefe)
 → 3273 (Lots of Sunlight)
 → 3274 (Crossing Streets)
 → 3276 (The Great Wall Game)
 → 3277 (Workshops)
 → 3278 (Zones)
3302 (Linear world)
3303 (Songs)
3305 (Tour)
3307 (Adventurous Driving)
3344 (Suit Distribution)
3434 (Plinko)
3439 (Bingo!)
3391 (Overflowing Bookshelf)
3395 (Painter)
3397 (Leapin' Lizards)
3437 (Pegs)
3524 (The Cow Doctor)
3814 (Self-divisible Numbers)
3934 (He is offside!)
4051 (I18n)
4118 - 4128 (World Finals - Banff Springs, Alberta - 2007/2008)
 → 4118 (Air Conditioning Machinery)
 → 4126 (Password Suspects)
4129 - 4131 (Oceania - South Pacific - 2008/2009, G-I)
4138 - 4147 (Asia - Manila, Singapore - 2008/2009)
4148 - 4156 (North America - South Central - 2008/2009)
4157 - 4166 (Asia - Aizu (Japan) - 2008/2009)
 → 4160 (Digits on the Floor)
4167 - 4174 (North America - Mid Central - 2008/2009)
4183 - 4191 (Europe - Southeastern - 2008/2009)
 → 4184 (Sky Code)
 → 4190 (GCD Determinant)
4192 - 4199 (North America - Mid Atlantic - 2008/2009)
4200 - 4209 (Asia - Dhaka(Bangladesh) - 2008/2009)
4210 - 4220 (Latin America - South America - 2008/2009)
4221 - 4225 (North America - Rocky Mountain - 2008/2009, D-H)
4228 (Fred's Lotto Tickets)
4229 (A No-Win Situation)
4232 - 4240 (North America - Greater New York - 2008/2009)
4241 - 4248 (North America - East Central - 2008/2009)
4269 - 4276 (Asia - Hefei (China) - 2008/2009)
4286 - 4295 (Europe - Northwestern - 2008/2009)
4296 - 4305 (Europe - Southwestern - 2008/2009)
4332 - 4340 (Asia - Amritapuri (India) - 2008/2009)
4361 - 4370 (Africa and the Middle East - Africa and Arab - 2008/2009)
4382 (YAPTCHA)
4403 - 4413 (Asia - Kuala Lumpur (Malaysia) - 2008/2009)
 → 4410 (Shooting the Monster)
 → 4412 (The Great Game)
4422 - 4422 (North America - Rocky Mountain - 2008/2009, A)
4436 (Optimal Strategy for the ICPC)
4445 - 4455 (ACM/ICPC World Finals - Stockholm - 2008/2009)
 → 4445 (A Careful Approach)
 → 4449 (Fare and Balanced)
 → 4450 (Deer-Proof Fence)
 → 4452 (The Ministers' Major Mess)
4456 - 4464 (Oceania - South Pacific - 2009/2010)
 → 4456 (Contest Postmortem)
 → 4459 (Blue Moon)
 → 4460 (Rewards for Math!)
 → 4461 (Easy does it!)
 → 4464 (May the Right-Force be with you)
4472 - 4482 (Latin America - South America - 2009/2010)
 → 4472 (Another Crisis)
 → 4473 (Brothers)
 → 4475 (Dinner Hall)
 → 4476 (Electric Bill)
 → 4477 (File Recover)
 → 4478 (Grapevine)
 → 4479 (Hooligan)
 → 4480 (Isosceles Triangles)
 → 4482 (Klingon Levels)
4483 - 4492 (Asia - Site 11 (China, Wuhan) - 2009/2010)
 → 4483 (Assembling Services)
 → 4484 (Box Relations)
 → 4485 (Crossing Rivers)
 → 4486 (Download Manager)
 → 4487 (Exclusive-OR)
 → 4489 (Gift Hunting)
 → 4490 (Help Bubu)
 → 4492 (Jiajia's Robot)
4493 - 4503 (Asia - Site 9 (Bangladesh, Dhaka) - 2009/2010)
 → 4493 (That is Your Queue)
 → 4494 (How Many Ones Needed?)
 → 4495 (Foot Notes)
 → 4496 (A Match Making Problem)
 → 4497 (Games of Block)
 → 4499 (Camera in the Museum)
 → 4502 (How Many bases?)
4504 - 4513 (Europe - Southwestern - 2009/2010, Madrid, Spain)
 → 4504 (Trick or Treat)
 → 4505 (Working at the Restaurant)
 → 4506 (Lights)
 → 4507 (Darts)
 → 4509 (Haunted Graveyard)
 → 4510 (Slalom)
 → 4512 (Happy Telephones)
 → 4513 (Stammering Aliens)
4524 - 4532 (Asia - Hsinchu (Taiwan) - 2009/2010)
 → 4524 (Interstar Transport)
 → 4525 (Clues)
 → 4526 (Inventory)
 → 4527 (Vaccination Centers)
 → 4528 (Schedule Pairs of Jobs)
 → 4529 (A Constrained Queen Game)
 → 4532 (Magic Rope)
4541 - 4551 (Europe - Southeastern - 2009/2010, Bucharest, Romania)
 → 4541 (RSA Factorization)
 → 4543 (System Engineer)
 → 4549 (The Robbery)
4552 - 4560 (North America - Greater New York - 2009/2010)
 → 4557 (Adjacent Bit Counts)
4570 - 4578 (North America - Mid Central - 2009/2010)
 → 4570 (Up and Down)
 → 4571 (Gnome Sequencing)
 → 4572 (DuLL)
 → 4573 (Black Vienna)
 → 4574 (Duplicate Removal)
 → 4575 (Rock, Paper, Scissors)
 → 4577 (Cell Towers)
 → 4578 (RIPOFF)
4609 - 4618 (Europe - Northwestern - 2009/2010, Nuremberg, Germany)
 → 4609 (An Industrial Spy)
 → 4610 (Common Subexpression Elimination)
 → 4611 (Divisible Subsequences)
 → 4612 (Fractal)
 → 4613 (Mountain Road)
 → 4614 (Moving to Nuremberg)
 → 4616 (Settlers of Catan)
 → 4617 (Simple Polygon)
4636 - 4645 (Asia - Tokyo - 2009/2010)
 → 4636 (Cubist Artwork)
 → 4637 (Repeated Substitution with Sed)
 → 4638 (Swimming Jam)
 → 4639 (Separate Points)
 → 4641 (Chemist's Math)
 → 4642 (Malfatti Circles)
 → 4643 (Twenty Questions)
 → 4645 (Infected Land)
4676 - 4685 (Asia - Amritapuri (India) - 2009/2010)
 → 4676 (Geometry Problem)
 → 4677 (Interleaved Periodic String)
 → 4678 (Lap time in a racing circuit)
 → 4679 (Lattice Squares)
 → 4680 (Trip Compulsion)
 → 4681 (Visible Lattice)
 → 4682 (XOR Sum)
 → 4683 (Find The Number)
 → 4684 (Love for Pizza)
 → 4685 (Succession)
4694 - 4701 (North America - South Central - 2009/2010)
 → 4694 (The Neptune Adventure)
 → 4695 (Phil In the Blanks)
 → 4696 (Honeycomb, Honeycomb, Me Want Honeycomb!)
 → 4697 (YO!)
 → 4698 (Barcode of Judgment)
 → 4699 (Frenemies)
 → 4700 (Know When to Hold Them)
 → 4701 (I'm Attacking the Darkness!)
4712 - 4722 (Asia - Phuket, Vietnam - 2009/2010)
 → 4712 (Airplane Parking)
 → 4713 (Elias Omega Coding)
 → 4714 (In-circles Again)
 → 4715 (Rating Hazard)
 → 4716 (Relational Operators)
 → 4721 (Nowhere Money)
4733 - 4742 (Africa and the Middle East - Africa and Arab - 2009/2010)
 → 4733 (Seinfeld)
 → 4734 (Tiles of Tetris, Not!)
 → 4735 (Not So Flat After All)
 → 4736 (Probability One)
 → 4737 (Hop --- Don't Walk!)
 → 4739 (Stock Chase)
 → 4740 (Land Division)
 → 4741 (Kind of a Blur)
4785 - 4795 (World Finals - Harbin - 2009/2010)
 → 4786 (Barcodes)
 → 4787 (Tracking Bio-bots)
 → 4788 (Castles)
 → 4791 (The Islands)
 → 4794 (Sharing Chocolate)
4805 - 4815 (Latin America - South America - 2010/2011)
 → 4805 (Ants Colony)
 → 4806 (Bingo!)
 → 4807 (Cocircular Points)
 → 4808 (Digits Count)
 → 4810 (Flowers Flourish from France)
 → 4812 (Hyperactive Girl)
 → 4813 (Ingenious Metro)
 → 4814 (Jollo)
 → 4815 (Kids' Wishes)
4853 - 4862 (Asia - Dhaka (Bangladesh) - 2010/2011)
 → 4853 (Emoogle Balance)
 → 4854 (A Digital Satire of Digital Age)
 → 4855 (Hyper Box)
 → 4856 (OmniGravity)
 → 4857 (Halloween Costumes)
 → 4858 (Digital Matrix)
 → 4859 (Knockout Tournaments)
4944 - 4953 (Europe - Northwestern (Nuremberg, Germany) - 2010/2011)
 → 4944 (Fair Division)
 → 4946 (High Score)
 → 4948 (Rankings)
 → 4949 (Risk)
 → 4951 (Stock Prices)
4954 - 4963 (Europe - Southwestern (Madrid, Spain) - 2010/2011)
 → 4954 (Lawn mower)
 → 4956 (Comparing answers)
 → 4957 (Fake scoreboard)
 → 4959 (Jumping monkey)
 → 4961 (Assembly line)
4994 - 5003 (Asia - Kuala Lumpur, Malaysia - 2010/2011)
 → 4994 (Overlapping Scenes)
 → 4995 (Language Detection)
 → 4996 (Scientefic Experiment)
 → 4997 (ABCD Tiles)
 → 5000 (Underwater Snipers)
 → 5001 (Making Quadrilaterals)
 → 5002 (The Queue)

PKU Online Judge

1067 (取石子游戏)
1091 (跳蚤)
1112 (Team Them Up!)
1127 (Jack Straws)
1300 (Door Man)
1302 (Blue Gene, Jr.)
1304 (World's Worst Bus Schedule)
1659 (Frogs' Neighborhood)
1746 (Loan)
1896 (Code Formatting)
1944 (Fiber Communications)
1946 (Cow Cycling)
1949 (Chores)
1952 (BUY LOW, BUY LOWER)
1957 (Beehives)
1970 (The Game)
2005 (Blackjack)
2019 (Cornfields)
2069 (Super Star)
2112 (Optimal Milking)
2126 (Factoring a Polynomial)
2143 (Make a Sequence)
2147 (Dice Puzzle)
2149 (Inherit the Spheres)
2151 (Check the difficulty of problems)
2187 (Beauty Contest)
2188 (Cow Laundry)
2230 (Watchcow)
2284 (That Nice Euler Circuit)
2338 (Basic)
2380 (Sales Report)
2384 (Harder Sokoban Problem)
2425 (Jersey Politics)
2431 (Expedition)
2458 (Rigging the Bovine Election)
2500 (Pia's Party)
2528 (Mayor's posters)
2550 (Zipf's Law)
2558 (Genetic Code)
2598 (Match Throwing Game)
2674 (Linear world)
2675 (Songs)
2677 (Tour)
2679 (Adventurous Driving)
2693 (Chocolate Chip Cookies)
2705 (Overflowing Bookshelf)
2709 (Painter)
2711 (Leapin' Lizards)
2721 (Suit Distribution)
2723 (Get Luffy Out)
2758 (Checking the Text)
2775 (The Number of the Same BST)
2802 (Plinko)
2805 (Pegs)
2807 (Bingo!)
2943 (The Cow Doctor)
3008 (Hexerpents of Hexwamp (六角沼の六角大蛇))
3032 (Card Trick)
3045 (Cow Acrobats)
3139 (Balancing the Scale)
3171 (Cleaning Shifts)
3182 (The Grove)
3193 (Cow Phrasebook)
3212 (Rescue Alice)
3263 (Tallest Cow)
3270 (Cow Sorting)
3272 (Cow Traffic)
3277 (City Horizon)
3280 (Cheapest Palindrome)
3281 (Dining)
3378 (Crazy Thairs)
3493 (Chessboard Puzzle)
3573 (I18n)
3612 (Telephone Wire)
3613 (Cow Relays)
3622 (Gourmet Grazers)
3658 (Artificial Lake)
3667 (Hotel)
3690 (Constellations)
3695 (Rectangles)
3697 (USTC campus network)
3699 - 3706 (POJ Founder Monthly Contest – 2008.10.05)
3715 (Blue and Red)
3716 (Panda's Birthday Present)
3717 (Decrypt the Dragon Scroll)
3719 (Art of Balance)
3720 (Occurrence of Digits)
3731 - 3739 (PKU Campus 2009 (POJ Monthly Contest - 2009.05.17))
 → 3731 (Escape)
 → 3732 (Paint Me Less)
 → 3734 (Blocks)
 → 3735 (Training little cats)
 → 3736 (Snipe the Sniper)
 → 3737 (UmBasketella)
3740 (Easy Finding)
3741 (Number System Converter)
3742 (Equivalent Polynomial)
3744 (Scout YYF I)
3747 (Scout YYF II)
3761 - 3770 (POJ Monthly Contest 2010.05.09)
 → 3761 (Bubble Sort)
 → 3762 (The Bonus Salary!)
 → 3763 (Tour in Wonder Land)
 → 3764 (The xor-longest Path)
 → 3765 (Xiang Hex)
 → 3766 (Hexagon Coin Toss)
 → 3767 (I Wanna Go Home)
 → 3768 (Repeater)
 → 3769 (Baseball on the Mercury)
 → 3770 (Baseball on the Mars)
3799 (Optimal Strategy for the ICPC)
3802 - 3811 (ACM/ICPC Asia Regional Contest 2009 Tokyo)
 → 3802 (Cubist Artwork)
 → 3803 (Repeated Substitution with Sed)
 → 3804 (Swimming Jam)
 → 3805 (Separate Points)
 → 3807 (Chemist's Math)
 → 3808 (Malfatti Circles)
 → 3809 (Twenty Questions)
 → 3811 (Infected Land)
3842 - 3851 (ACM/ICPC Europe - Northwestern - 2009/2010)
 → 3842 (Pirvate problem 20100801 A (An Industrial Spy))
 → 3844 (Pirvate problem 20100801 C (Divisible Subsequences))
 → 3845 (Pirvate problem 20100801 D (Fractal))
 → 3846 (Pirvate problem 20100801 E (Mountain Road))
 → 3849 (Pirvate problem 20100801 H (Settlers of Catan))

TJU Online Judge

1312 (The Game)
1460 (Make a Sequence)
1464 (Dice Puzzle)
1466 (Inherit the Spheres)
1836 (Door Man)
1838 (Blue Gene, Jr.)
1840 (World's Worst Bus Schedule)
1849 (Linear world)
1850 (Songs)
1852 (Tour)
1854 (Adventurous Driving)
1885 (Overflowing Bookshelf)
1889 (Painter)
1891 (Leapin' Lizards)
1989 (Suit Distribution)
2067 (Plinko)
2070 (Pegs)
2072 (Bingo!)
2314 (Team Them Up!)
2366 (Sales Report)
2370 (Harder Sokoban Problem)
2382 (Code Formatting)
2427 (The Cow Doctor)
2706 (Factoring a Polynomial)
2787 (Cow Traffic)
2822 (Cheapest Palindrome)
2823 (Dining)
2824 (City Horizon)
3121 (Sky Code)
3140 - 3149 (USACO 2008 NOVEMBER)
3184 (Government Help)
3185 (Tree Insertions)
3249 (Happy Coins)

Zhejiang University Online Judge

1658 (Lattice Practices)
1659 (Mobile Phone Coverage)
1660 (Napoleon's Grumble)
1661 (Pipeline Scheduling)
1665 (Rational Irrationals)
1666 (Square Coins)
1667 (Die Game)
1668 (Trapezoids)
1669 (Mirror Illusion)
1670 (Heavenly Jewels)
1671 (Walking Ant)
1672 (Co-occurrence Search)
1673 (Lost in Space)
1674 (Family Tree)
1675 (Push!!)
1676 (Pump up Batteries)
1679 (Telescope)
1685 (Beehives)
2265 (Dice Puzzle)
2267 (Inherit the Spheres)
2463 (Code Formatting)
3222 - 3230 (ZOJ Monthly, July 2009)
 → 3222 (Coverage)
 → 3229 (Shoot the Bullet)
 → 3230 (Solving the Problems)
3396 - 3405 (ZOJ Monthly, September 2010)
 → 3396 (Conference Call)
 → 3397 (Change the Major)
 → 3401 (Guitar)
 → 3402 (Marble)
 → 3403 (Strange Calendar III)
 → 3405 (Counting Factor Trees)

Sphere Online Judge

27 (Sorting Bank Accounts) [SBANK]
29 (Hash it!) [HASHIT]
48 (Glass Beads) [BEADS]
61 (Brackets) [BRCKTS]
63 (Square Brackets) [SQRBR]
78 (Marbles) [MARBLES]
91 (Two squares or not two squares) [TWOSQRS]
94 (Numeral System of the Maya) [MAYA]
95 (Street Parade) [STPAR]
96 (Shopping) [SHOP]
97 (Party Schedule) [PARTY]
98 (Dance Floor) [DFLOOR]
101 (Fishmonger) [FISHER]
104 (Highways) [HIGH]
108 (Decoding Morse Sequences) [MORSE]
123 (Paying in Byteland) [PAYING]
137 (Partition) [PARTIT]
138 (Election Posters) [POSTERS]
154 (Sweet and Sour Rock) [ROCK]
176 (Sum of one-sequence) [SUM1SEQ]
178 (Road net) [ROADNET]
188 (Rectangles) [RECTNG1]
206 (Bitmap) [BITMAP]
207 (Three-coloring of binary trees) [THREECOL]
227 (Ordering the Soldiers) [ORDERS]
237 (Sums in a Triangle) [SUMITR]
244 (Internally Stable Sets) [INTSS]
247 (Chocolate) [CHOCOLA]
279 (Interesting number) [INUMBER]
328 (Bishops) [BISHOPS]
339 (Recursive Sequence) [SEQ]
344 (Poker) [POKER]
345 (Mixtures) [MIXTURES]
346 (Bytelandian gold coins) [COINS]
359 (Alpha Centauri Tennis) [ACT]
362 (Ignore the Garbage) [IGARB]
364 (Pocket Money) [LISA]
369 (Math I) [MATH1]
381 (106 miles to Chicago) [CHICAGO]
384 (Any fool can do it) [FOOL]
388 (Menu) [MENU]
402 (Hike on a Graph) [HIKE]
403 (Sort fractions) [FRACTION]
423 (Assignments) [ASSIGN]
479 (Permutation generator) [TPERML]
518 (Zig-Zag Permutation) [ZZPERM]
526 (Divisors) [DIV]
530 (Divisors 2) [DIV2]
660 (Dungeon of Death) [QUEST4]
665 (String it out) [SUBS]
676 (Sorting is not easy) [LSORT]
687 (Repeats) [REPEATS]
694 (Distinct Substrings) [DISUBSTR]
696 (Liar Liar) [LIAR]
704 (Remove The String) [PSTRING]
705 (New Distinct Substrings) [SUBST1]
707 (Triple-Free Sets) [TFSETS]
709 (The day of the competitors) [NICEDAY]
744 (Longest Permutation) [LPERMUT]
764 (Delay-noise Analysis) [MIS]
839 (Optimal Marks) [OPTM]
861 (Counting inversions) [SWAPS]
1021 (Aibohphobia) [AIBOHP]
1022 (Angels and Devils) [ANGELS]
1025 (Fashion Shows) [FASHION]
1028 (Hubulullu) [HUBULLU]
1030 (Triple Fat Ladies) [EIGHTS]
1108 (Card Trick) [CTRICK]
1183 (Accomodate the palace) [PALACE]
1326 (A Chase In WonderLand) [CHASE]
1417 (University Employees) [EMP]
1419 (A Game with Numbers) [NGM]
1434 (Equation) [KPEQU]
1436 (Is it a tree) [PT07Y]
1437 (Longest path in a tree) [PT07Z]
1553 (Backup Files) [BACKUP]
1744 (Evaluate the polynomial) [POLEVAL]
1804 (Genetic Code) [GENETIC]
1881 (Instruction Decoder) [ICODER]
1962 (Circles) [CIRCLES]
2007 (Another Very Easy Problem! WOW!!!) [COUNT]
2123 (Candy I) [CANDY]
2148 (Candy III) [CANDY3]
2150 (Counting Subsequences) [SUBSEQ]
2157 (Anti-Blot System) [ABSYS]
2178 (He is offside!) [OFFSIDE]
2270 (Balloons in a Box) [BALLOON]
2320 (Manhattan) [DISTANCE]
2322 (Tree Game) [TREEGAME]
2412 (Arranging Amplifiers) [ARRANGE]
2416 (Distinct Subsequences) [DSUBSEQ]
2426 (Palindromes) [PLD]
2450 (Counting Rabbits) [RABBIT1]
2727 (Army Strength) [ARMY]
2742 (Summing Sums) [SUMSUMS]
2852 (Broken Keyboard) [BROKEN]
2853 (Decode the Strings) [PDECODE]
2879 (The Cow Doctor) [DOCTOR]
2905 (Not a Triangle) [NOTATRI]
2961 (Triomino Game) [TRIOMINO]
2962 (Painting Blocks (Act I)) [PAINTBLK]
3080 (Painter) [PAINTER]
3096 (Overflowing Bookshelf) [BOOKSH]
3107 (Odd Numbers of Divisors) [ODDDIV]
3112 (Strings) [STSTRING]
3196 (Divisibility Relation) [DIVREL]
3267 (D-query) [DQUERY]
3378 (Mirrored Pairs) [MIRRORED]
3436 (Histogram) [HIST2]
3477 (Baby) [BABY]
3580 (Company) [COMPANY]
3723 (Snooker) [SNOOKER]
3725 (Taming a T-REX) [TREX]
3863 (Area of circles) [VCIRCLES]
3868 (Total Flow) [MTOTALF]
3870 (Military Story) [VMILI]
3876 (Tablica) [TABLIC]
3877 (Cvjetici) [CVJETICI]
3878 (Rectangles Perimeter) [MMAXPER]
3881 (Majstor) [MAJSTOR]
3882 (Cijevi) [CIJEVI]
3885 (Coins Game) [MCOINS]
3889 (Closest Number) [MCLONUM]
3890 (Rectangles Counting) [MRECTCNT]
3920 (Lucius Dungeon) [BYTESE1]
3921 (The Great Ball) [BYTESE2]
3924 (Filchs Dilemna) [BYTESH1]
3979 (Whirligig number) [MZVRK]
3982 (String problem) [MSTRING]
4031 (Mass of Molecule) [MMASS]
4060 (A game with probability) [KPGAME]
4110 (Fast Maximum Flow) [FASTFLOW]
4191 (Sky Code) [MSKYCODE]
4206 (Fast Maximum Matching) [MATCHING]
4300 (Rectangles) [AE00]
4301 (Tables) [AE1B]
4303 (Dice) [AE2A]
4343 (Empty Boxes) [EBOXES]
4408 (Build a Fence) [FENCE1]
4415 (Power of Integer) [INTEGER1]
4429 (Spelling Lists) [MIB]
4452 (Simple Arithmetics II) [ARITH2]
4454 (Brackets II) [BRCKTS2]
4457 (Shopping II) [SHOP2]
4465 (The Ant) [ANTTT]
4477 (Flower growing) [FLOWGROW]
4480 (Chaos Strings) [MCHAOS]
4483 (Roads Repair) [MROADS]
4485 (MobiZone vs VinaGone) [MOBIVINA]
4523 (Binomial Coefficients) [UCI2009B]
4525 (Digger Octaves) [UCI2009D]
4580 (ABCDEF) [ABCDEF]
4672 (Yanu in Movie theatre) [FUNPROB]
4681 (Twice) [TWICE]
4881 (Words on graphs) [AMBIG]
4882 (Counting in a DAG) [DAGCNT2]
4897 (Meowist Networking) [MEOWIST]
4908 (Run-Length Mathematics) [RLM]
4993 (Traveling Salesman) [FAKETSP]
5107 (Playing with Marbles) [TUTMRBL]
5132 (Hello Kitty) [HELLOKIT]
5161 (Factorial vs Power) [FACVSPOW]
5196 (Monotonous numbers) [MONONUM]
5271 (A Coin Game) [XOINC]
5294 (Recurrence) [REC]
5295 (Adjacent Bit Counts) [GNYR09F]
5297 (Family Problems) [FAMILYP]
5371 (Rational Number) [RATIONAL]
5449 (Seinfeld) [ANARC09A]
5450 (Tiles of Tetris, Not!) [ANARC09B]
5451 (Not So Flat After All) [ANARC09C]
5452 (Hop Do not Walk) [ANARC09D]
5464 (Counting triangles) [CT]
5676 (STONE GAME) [RESN04]
5699 (The last digit re-visited) [LASTDIG2]
5725 (123 Sequence) [KSEQ]
5732 (Paradox) [PARADOX]
5830 (Alternating Permutations) [ALTPERM]
5831 (Permutation Jumping) [PERMJUMP]
5832 (AND Rounds) [ANDROUND]
5833 (XOR Rounds) [XORROUND]
5917 (Factorial length) [LENGFACT]
5969 (Finding Maximum) [FINDMAX]
5970 (Finding Primes) [FINDPRM]
5972 (Maximum Sum Sequences) [MAXSUMSQ]
5973 (Selecting Teams) [SELTEAM]
5975 (Travelling Knight) [TRKNIGHT]
5976 (Traversing Grid) [TRGRID]
5977 (Weird Function) [WEIRDFN]
5978 (Frequent Prime Ranges) [FRQPRIME]
5979 (Yet Another Permutations Problem) [YAPP]
5980 (Matrix Game) [MATGAME]
6041 (Mountain Walking) [QCJ1]
6042 (Another Box Problem) [QCJ2]
6043 (The Game) [QCJ3]
6044 (Minimum Diameter Circle) [QCJ4]
6059 (Another GCD problem) [GCDSQF]
6072 (Chocolate) [SOCOLA]
6219 (Edit distance) [EDIST]
6221 (Increasing Powers of K) [INCPOWK]
6236 (Matches) [FERT21_0]
6256 (Inversion Count) [INVCNT]
6285 (Another Game With Numbers) [NGM2]
6286 (Sum of products) [SUMMUL]
6289 (Bomberman) [BOMBER]
6290 (Robbery 2) [ROBBERY2]
6291 (Problem) [PROBLEM]
6294 (Yodaness Level) [YODANESS]
6297 (Decipher) [ROOTCIPH]
6322 (The hunt for Gollum) [ARDA1]
6377 (Two Array Problem) [SAMTWARR]
6408 (Counting Triangles 2) [KKKCT2]
6450 (PP numbers) [MB1]
6470 (Finding the Kth Prime) [TDKPRIME]
6471 (Printing some primes) [TDPRIMES]
6477 (Bowling) [BOWLING1]
6479 (The Very Greatest Common Divisor) [VGCD]
6499 (Breaking Chocolates) [BCHOCO]
6500 (Counting Diameter) [DCOUNT]
6517 (Farmer Sepp) [JOCHEF]
6556 (N DIV PHI_N) [NDIVPHI]
6560 (N DIV PHI_N (Hard)) [NDIVPHI2]
6578 (Segment Tree) [SEGTREE]
6622 (Islands and Hotel Chains) [HCHAINS]
6624 (Snowball Game) [SNOWGAME]
6650 (Consecutive sequence) [SEQ6]
6665 (Easy Longest Common Substring) [ELCS]
6666 (How Many Trees 1) [HMT1]
6667 (How Many Trees 2) [HMT2]
6678 (Load Testing) [GCJ101C]
6681 (Điểm trên cạnh hình chữ nhật - HRASTOVI) [MRECT1]
6690 (A - Comparison Expressions) [BOCOMP]
6691 (Picking Up Chicks) [GCJ101BB]
6692 (B - Esperanto Lessons) [BOLESSON]
6694 (D - Playing with Marbles) [BOMARBLE]
6695 (E - Publish of Perish) [BOPERISH]
6700 (Make it Smooth) [GCJ101AB]
6706 (Making Chess Boards) [CT101CC]
6709 (Multiplying by Rotation) [MBR]
6711 (Transform a sequence) [BLOCK]
6717 (Two Paths) [TWOPATHS]
6732 (Camels) [CT14E]
6738 (Nice Quadrangles) [CHEFMAY]
6772 (Happy Coins) [HC]
6773 (Dinostratus Numbers) [DINONUM]
6805 (Counter attack) [CATTACK]
6818 (Capital City) [CAPCITY]
6824 (Flag) [CTFLAG]
6826 (Hacking) [HACKING]
6828 (Lineup) [LINEUP]
6829 (Polynomial) [POLYNOM]
6830 (Soccer Bets) [SBETS]
6852 (Fish) [CT16E]
6893 (Power Sums) [PWSUM]
6949 (PIN) [CTOI10D2]
6950 (A HUGE TOWER) [CTOI10D3]
7015 (Party) [CFPARTY]
7102 (Doing The Word Wrap) [DTWW]
7104 (Feanor The Elf) [FTHEELF]
7108 (Heptadecimal Numbers) [HEPNUM]
7132 (Headshot) [HEADSHOT]
7169 (Pizza) [EGYPIZZA]
7185 (Bye Bye Cakes) [BYECAKES]
7190 (Guess the Number) [GUESSTHE]
7191 (Hexagonal Board) [HEXBOARD]
7192 (Integral Maximization) [INTEGMAX]
7208 (Black or White) [BORW]
7210 (Draw Mountains) [DRAWM]
7212 (Find String Roots) [FINDSR]
7231 (Homework) [HOMEW]
7250 (Blocks for kids) [PBOARD]
7260 (Number Game) [NUMGAME]
7322 (Prime Pattern) [CHEFJUN]
7333 (Shuffle Music) [SHUFFLEN]
7380 (Factorial challenge) [FUNFACT]
7387 (Airplane Parking) [PKA]
7389 (Rating Hazard) [PKD]
7424 (Girls and Boys) [GIRLSNBS]
7425 (Hackers) [HACKERS]
7427 (Jara's Legacy) [JARA]
7565 (Another Sorting Algorithm) [IITD1]
7566 (Expected Cycle Sums) [IITD5]
7567 (Divisor Summation Powered) [IITD4]
7599 (Optimal Strategy for the ICPC) [PC8F]
7600 (Milk Trading) [MLK]
7602 (New Game with a Chess Piece) [CF36D]
7603 (Fibonacci Factor) [FIBFACT]
7623 (Divisors VI) [DIVISER9]
7676 (Sum of Digits) [CPCRC1C]
7718 (Number of common divisors) [COMDIV]
7733 (Happy Numbers I) [HPYNOS]
7745 (Bingo!) [MBINGO]
7746 (Cocircular Points) [MCOCIR]
7747 (Digits Count) [MDIGIT3]
7753 (Happy Numbers II) [HPYNOSII]
7757 (Flowers Flourish from France) [MFLAR10]
7758 (Growing Strings) [MGLAR10]
7759 (Hyperactive Girl) [MHLAR10]
7760 (Kids' Wishes) [MKLAR10]
7761 (Jollo) [MJLAR10]
7763 (Ingenious Metro) [MILAR10]
7775 (Explicit Formula) [EXFOR]
7776 (Kind of a Blur) [ANARC09I]
7778 (Land Division) [ANARC09H]
7779 (Stock Chase) [ANARC09G]
7804 (Defense of a Kingdom) [DEFKIN]
7805 (Kitchen Robot) [KITROB]
7881 (Ljutnja) [C1LJUTNJ]
8422 (Maximum Profit) [BTCODE_D]

Timus Online Judge

1873 - 1884 (Ural Regional School Programming Contest 2011)
 → 1873 (GOV Chronicles)
 → 1874 (Football Goal)
 → 1875 (Angry Birds)
 → 1876 (Centipede's Morning)
 → 1877 (Bicycle Codes)
 → 1878 (Rubinchik's Cube)
 → 1879 (GOV-internship 2)
 → 1880 (Psych Up's Eigenvalues)
 → 1881 (Long problem statement)
 → 1882 (Old Nokia)
 → 1883 (Ent's Birthday)
 → 1884 (Way to the University)

University of Aizu Online Judge

0040 (Affine Cipher)
0109 (Smart Calculator)
0153 (Triangle and Circle)
0171 (Dice Puzzle)
0172 (Doctor's Research Rooms)
0190 (Eleven Puzzle)
0195 - 0204 (パソコン甲子園2009 予選)
 → 0195 (What is the Most Popular Shop in Tokaichi? (十日市での人気の出店は?))
 → 0196 (Baseball Championship (野球大会))
 → 0197 (Greatest Common Divisor: Euclidean Algorithm (最大公約数-ユークリッドの互除法))
 → 0198 (Trouble in Artist Shinagawa's Artifact (芸術家品川のピンチ))
 → 0199 (Chairs Where Demanding People Sit (難儀な人たちが座る椅子))
 → 0200 (Traveling Alone: One-way Ticket of Youth (高校生一人旅 ~青春の片道切符編~))
 → 0201 (Wrought Gold Master (錬金マスター))
 → 0202 (At Boss's Expense (上司のおごり))
 → 0203 (A New Plan of Aizu Ski Resort (会津山スキー場の新企画))
 → 0204 (UFO Shooting Down Operation (UFO撃墜作戦))
0205 - 0215 (パソコン甲子園2009 本戦)
 → 0205 (Rock, Paper, Scissors (じゃんけん))
 → 0206 (Next Trip (旅行はいつ?))
 → 0207 (Block (ブロック))
 → 0208 (Room Numbers of a Hospital (病院の部屋番号))
 → 0209 (Scene in a Picture (写真に写っている景色は?))
 → 0210 (The Squares (ザ・スクエアーズ))
 → 0211 (Jogging (みんなでジョギング))
 → 0212 (Highway Express Bus (高速バス))
 → 0213 (Subdivide The Land (土地分割))
 → 0215 (Pachimon Creature (パチモンクリーチャー))
0216 - 0225 (パソコン甲子園2010 予選)
 → 0216 (Cutting Down Water Bills)
 → 0217 (Walking in the Hospital)
 → 0218 (Dividing Students)
 → 0219 (A Popular Ice-cream Shop)
 → 0220 (Binary Digit A Doctor Loved)
 → 0221 (FizzBuzz)
 → 0222 (Prime Quadruplet)
 → 0223 (Stray Twins)
 → 0224 (Bicycle Diet)
 → 0225 (Kobutanukitsuneko)
0500 (Card Game)
0501 (Data Conversion)
0502 (Dice)
0504 (Card Game II)
0505 (Questionnaire)
0506 (String)
0507 (Square)
0508 (String With Rings)
0510 (Score (得点))
0511 (Who Are The Student Yet To Submit (未提出者は誰だ))
0512 (Caesar Cipher (シーザー暗号))
0513 (Shuffle The Cards (カードの並び替え))
0514 (Quality Checking (品質検査))
0515 (School Road (通学経路))
0516 (Maximum Sum (最大の和))
0517 (Longest Steps (最長の階段))
0518 (The Oldest Site (最古の遺跡))
0521 (Change (おつり))
0522 (JOI and IOI (JOIとIOI))
0523 (Card Game (カードゲーム))
0524 (Searching Constellation (星座探し))
0525 (Osenbei (おせんべい))
0526 (Boat Travel (船旅))
0527 (DartsSeting Go Stones (碁石ならべ))
0528 (Common Sub-String (共通部分文字列))
0529 (Darts (ダーツ))
0530 (Pyon-Pyon River Crossing (ぴょんぴょん川渡り))
0531 (Paint Color (ペンキの色))
0532 (Time Card (タイムカード))
0533 (Contest (コンテスト))
0534 (Chain (連鎖))
0535 (Crossing Black Ice (薄氷渡り))
0536 (Shuffle (シャッフル))
0537 (Bingo (ビンゴ))
0538 (IOIOI)
0539 (Pizza (ピザ))
0540 (Amidakuji (あみだくじ))
0541 (Walk (散歩))
0542 (Authentication Level (認証レベル))
0543 - 0548 (第9回日本情報オリンピック 予選1)
 → 0543 (Receipt (レシート))
 → 0544 (Sugoroku (すごろく))
 → 0545 (Party (パーティー))
 → 0546 (Lining up the cards (カード並べ))
 → 0547 (Commute routes (通勤経路))
 → 0548 (Reindeer with no sense of direction (方向音痴のトナカイ))
1019 - 1028 (University of Aizu Programming Contest 2009 Spring, 参加記録)
1029 - 1034 (ACM-ICPC Japan Domestic Warm Up I)
 → 1029 (Traffic Analysis)
 → 1030 (Cubes Without Holes)
 → 1031 (Simple GUI Application)
 → 1032 (Course Planning for Lazy Students)
 → 1034 (Line Puzzle)
1035 - 1040 (ACM-ICPC Japan Domestic Warm Up II) (参加記録)
1041 - 1050 (パソコン甲子園2009 Warm-Up)
 → 1041 (Kyudo: A Japanese Art of Archery)
 → 1042 (Yes, I have a number)
 → 1043 (Selecting Teams Advanced to Regional)
 → 1044 (CamelCase)
 → 1045 (Split Up!)
 → 1046 (Ghost Buster!)
 → 1047 (Crop Circle)
 → 1048 (Provident Housewife)
 → 1049 (Building Houses)
 → 1050 (The Last Dangion)
1051 - 1061 (University of Aizu Programming Contest 2010, 参加記録)
 → 1051 (Citation Format)
 → 1052 (Old Bridges)
 → 1053 (Accelerated Railgun)
 → 1054 (Distorted Love)
 → 1055 (Huge Family)
 → 1056 (Ben Toh)
 → 1057 (Rolling Dice)
 → 1058 (Winter Bells)
 → 1059 (Mysterious Onslaught)
 → 1060 (No Story)
1103 (Board Arrangements for Concentration Games)
1104 (Where's Your Robot?)
1105 (Unable Count)
1106 (Factorization of Quadratic Formula)
1107 (Spiral Footrace)
1108 (A Long Ride on a Railway)
1110 (Patience)
1115 (Multi-column List)
1117 (Missing Numbers)
1119 (Exploring Caves)
1143 (Hexerpents of Hexwamp (六角沼の六角大蛇))
1159 - 1164 (ACM/ICPC Japan Domestic 2009)
 → 1159 (Next Mayor (次期町長))
 → 1160 (How Many Islands? (島はいくつある?))
 → 1161 (Verbal Arithmetic (覆面算))
 → 1162 (Discrete Speed (離散的速度))
 → 1163 (Cards (カードゲーム))
1165 - 1171 (ACM/ICPC Japan Domestic 2010)
 → 1165 (Pablo Squarson's Headache (角角画伯,かく悩みき))
 → 1166 (Amazing Mazes (迷図と命ず))
 → 1167 (Pollock's conjecture (ポロック予想))
 → 1168 (Off Balance (ぐらぐら))
 → 1169 (The Most Powerful Spell (最強の呪文))
 → 1170 (Old Memories (古い記憶))
 → 1171 (Laser Beam Reflections (レーザー光の反射))
1201 (Lattice Practices)
1202 (Mobile Phone Coverage)
1203 (Napoleon's Grumble)
1204 (Pipeline Scheduling)
1208 (Rational Irrationals)
1209 (Square Coins)
1210 (Die Game)
1211 (Trapezoids)
1212 (Mirror Illusion)
1213 (Heavenly Jewels)
1214 (Walking Ant)
1215 (Co-occurrence Search)
1216 (Lost in Space)
1217 (Family Tree)
1218 (Push!!)
1219 (Pump up Batteries)
1222 (Telescope)
1228 (Beehives)
1231 (Super Star)
1249 (Make a Sequence)
1253 (Dice Puzzle)
1255 (Inherit the Spheres)
1288 (Digits on the Floor)
1295 - 1304 (ACM/ICPC Asia Regional Contest 2009 Tokyo)
 → 1295 (Cubist Artwork)
 → 1296 (Repeated Substitution with Sed)
 → 1297 (Swimming Jam)
 → 1298 (Separate Points)
 → 1300 (Chemist's Math)
 → 1301 (Malfatti Circles)
 → 1302 (Twenty Questions)
 → 1304 (Infected Land)
2008 (Dragon Fantasy)
2024 (Blackjack)
2025 (Eight Princes)
2026 (Divisor is the Conqueror)
2028 (Gather on the Clock)
2030 (Ruins)
2039 (Space Coconut Crab II)
2040 (Sort the Panels)
2042 (So Sleepy)
2048 (Everlasting...?)
2049 (Headstrong Student)
2051 (Rotation Estimation)
2058 (Moduic Squares)
2061 (International Party)
2064 (Make Friendships)
2074 (Rakunarok)
2079 (Dance Dance Revolution)
2080 (Compress Files)
2082 (Goofy Converter)
2084 (Hit and Blow)
2086 (!)
2090 (Repeated Subsequences)
2096 (Private Teacher)
2123 (Divisor Function)
2126 (Alien Pianist)
2130 (Billion Million Thousand)
2134 (Deadly Dice Game)
2137 (Time Trial)
2142 (Bitwise Kingdom)
2149 - 2154 (ICPC OB/OGの会 模擬国内予選2009)
 → 2149 (Luck Manipulator)
 → 2150 (Matsuzaki Number)
 → 2151 (Brave Princess Revisited)
 → 2153 (Mirror Cave)
2155 - 2164 (ICPC OB/OGの会 2009 夏合宿 2日目)
 → 2155 (Infected Computer)
 → 2156 (Magic Slayer)
 → 2157 (Dial Lock)
 → 2160 (Voronoi Island)
 → 2161 (Defend the Bases)
 → 2163 (Tatami)
 → 2164 (Revenge of the Round Table)
2165 - 2174 (ICPC OB/OGの会 2009 夏合宿 3日目)
 → 2165 (Strange String Manipulation)
 → 2166 (Erratic Sleep Habits)
 → 2168 (Luigi's Tavern)
2182 (Eleven Lover)
2185 - 2196 (UTPC2009, 東京大学プログラミングコンテスト2009, 参加記録)
 → 2185 (Petting Cats (ねこかわいがり))
 → 2186 (Heian-Kyo Walking (平安京ウォーキング))
 → 2187 (Card Game (カードゲーム))
 → 2188 (Unit Converter (単位変換器))
 → 2189 (Addition Game (足し算ゲーム))
 → 2190 (Angel Stairs (天使の階段))
 → 2191 (A Book Shop With a Frequent Greetings (挨拶の多い本屋さん))
 → 2193 (The Door into Summer (夏への扉))
 → 2195 (Cat Numbers!)
2197 - 2203 (ICPC OB/OGの会 模擬国内予選2010)
 → 2197 (Sum of Consecutive Integers)
 → 2198 (Moonlight Farm)
 → 2199 (Differential Pulse Code Modulation)
 → 2200 (Mr. Rito Post Office)
 → 2201 (Immortal Jewels)
2204 - 2215 (東京大学プログラミングコンテスト2010 (UTCP2010))
 → 2204 (Final Examination! (期末試験!))
 → 2205 (Lottery Checker (宝くじチェッカー))
 → 2206 (Compile (コンパイル))
 → 2207 (Consistet Unit System (無矛盾な単位系))
 → 2208 (The Melancholy of Thomas Right (トーマス・ライトの憂鬱))
 → 2209 (UTF-8)
 → 2210 (Star Watching (天体観測))
 → 2211 (Stray Cats, Run... (迷い猫、走った))
 → 2212 (Stolen Jewel (盗まれた宝石))
 → 2214 (Warp Hall (ワープホール))
2242 - 2251 (ICPC OB/OGの会 模擬アジア地区予選2010) (関西オンサイト 参加記録)
 → 2242 (Era Name)
 → 2243 (Step Step Evolution)
 → 2244 (Dungeon Quest II)
 → 2245 (Dice Room)
 → 2247 (Two-Wheel Buggy)
 → 2249 (Road Construction)
 → 2250 (Operator)
 → 2251 (Merry Christmas)
2281 - 2289 (RUPC2011, (Ritsumeikan University Programming Contest)
 → 2281 (Swap Cipher (スワップ暗号))
 → 2282 (Problem B (B問題))
 → 2283 (Seishun 18 Kippu)
 → 2284 (The Legendary Sword (伝説の剣))
 → 2285 (Anipero (アニペロ))
 → 2286 (Farey Sequence)
 → 2288 (Oh, My Goat!)

Caribbean Online Judge

1579 - 1580 (The 2011 Caribbean Finals of the ACM-ICPC - Warmup)
 → 1579 (Bakugan) [BAKUGAN]
 → 1580 (Hailstone Sequences) [HAILSTONE]
1581 - 1591 (The 2011 Caribbean Finals of the ACM-ICPC - Real (Open))
 → 1581 (Army buddies) [ARMYB]
 → 1582 (Ball Stacking) [BALLSTACKING]
 → 1588 (Hedge Mazes) [HEDGEMAZES]
 → 1589 (In Braille) [INBRAILE]
 → 1590 (Jupiter Attacks!) [JUPITER]
 → 1591 (King's Poker) [KPOKER]

ACM / ICPC (まだonline judgeに登録されてないもの)

2008 Japan 国内予選 (結果感想)

Google Code Jam

2008 Qualification Round
2008 Round 1A
2008 Round 1B
2008 Round 2
2008 Round 3
2008 Practice Contest
2008 APAC local onsites
2008 AMER local onsites
2008 EMEA local onsites
2008 World Finals
2009 Qualification Round
2009 Round 1A
2009 Round 2 (参加記録)
2010 Qualification Round (参加記録)
 → A問題 - Snapper Chain
 → B問題 - Fair Warning
 → C問題 - Theme Park
2010 Round 1A (参加記録)
 → A問題 - Rotate
 → B問題 - Make it Smooth
 → C問題 - Number Game
2010 Round 1B
 → A問題 - File Fix-it
 → B問題 - Picking Up Chicks
 → C問題 - Your Rank is Pure
2010 Round 1C
 → A問題 - Rope Intranet
 → B問題 - Load Testing
 → C問題 - Making Chess Boards
2010 Round 2 (参加記録)
2010 Round 3 (参加記録)
2011 Qualification Round (参加記録)
 → A問題 - Bot Trust
 → B問題 - Magicka
 → C問題 - Candy Splitting
 → D問題 - GoroSort
Japan 2011 予選
 → A問題 - カードシャッフル
 → B問題 - 最高のコーヒー
 → C問題 - ビット数
Japan 2011 決勝 (参加記録)
 → A問題 - アンテナ修復
 → B問題 - バクテリアの増殖
 → C問題 - ワイルドカード

その他

Maximum Cup

Maximum-Cup 2008
Maximum-Cup 2010

Imos Contest

The 1st Imos Contest
The 2nd Imos Contest (参加記録)

JAPLJ Contest

JAPLJ Contest

天下一プログラマーコンテスト

2009

Facebook Hacker Cup

2011 Qualification Round (参加記録)
 → 1問目 - Double Squares
 → 2問目 - Peg Game
 → 3問目 - Studious Student
2011 Round 1A [無効試合] (参加記録)
 → 1問目 - After the Dance Battle
 → 2問目 - Power Overwhelming
 → 3問目 - First or Last
2011 Round 1A (参加記録)
 → 1問目 - Wine Tasting
 → 3問目 - Turn on the Lights
2011 Round 2 (参加記録)
 → 3問目 - Bonus Assignments

その他 (未整理系)


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