QOJ.ac

QOJ

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IDProblem Interactive Output Only CommunicationRating
#2901Hopscotch 500Southeast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021
#2902Shortest Missing SubsequencesSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021
#2903Tetris GenerationSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021Mid-Central USA Regional 2021
#2904Tournament SeedingSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021
#2905Tree HoppingSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021Mid-Central USA Regional 2021
#2906XOR IslandSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021Mid-Central USA Regional 2021
#2907Average CharacterSoutheast USA Regional 2021South Central USA Regional 2021Mid-Central USA Regional 2021
#2908Double PasswordSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021
#2909OverdraftSoutheast USA Regional 2021South Central USA Regional 2021Mid-Central USA Regional 2021
#2910Rise and FallSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021Northeast North America Regional 2021
#2911Square BounceSoutheast USA Regional 2021South Central USA Regional 2021Pacific Northwest Regional 2021
#2912Who Goes There?Southeast USA Regional 2021South Central USA Regional 2021Mid-Central USA Regional 2021
#2913Archery AccuracyPacific Northwest Regional 2021
#2914Problem Set ConstructionPacific Northwest Regional 2021Northeast North America Regional 2021Mid-Central USA Regional 2021
#2915Reversibly Cyclic StringsPacific Northwest Regional 2021
#2916Scaling RecipePacific Northwest Regional 2021
#2917Even SubstringsNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2918Tree Number GeneratorNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2919SubprimeNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2920Ultimate Binary WatchNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2921Land EqualityNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2922Word PuzzleNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2923Code GuessingNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2924Lone RookNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2925Parking LotNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2926Stream LagNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2927Bracket PairingNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2928Espresso!North Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2929Concert RehearsalNorth Central NA Regional 2021Mid-Atlantic USA Regional 2021
#2930Football ScoringGreater New York Regional 2021
#2931Tri-Color PuzzleGreater New York Regional 2021
#2932Checker SlideGreater New York Regional 2021
#2933Sequinary NumeralsGreater New York Regional 2021
#2934How Many Unicycles in a Broken WheelGreater New York Regional 2021
#2935Spider-FlyGreater New York Regional 2021
#2936Simple Collatz SequenceGreater New York Regional 2021
#2937CIDRGreater New York Regional 2021
#2938Three Spheres and a TetrahedronGreater New York Regional 2021
#2939Morse Code PalindromesGreater New York Regional 2021
#2940Pooling PCR TestsGreater New York Regional 2021
#2941LetterleGreater New York Regional 2021
#29427 Segments You Say?Greater New York Regional 2021
#2943NeighborsGreater New York Regional 2021
#2944Transporting SpaghettiGreater New York Regional 2021
#29451's For AllEast Central NA Regional 2021
#2946Abridged ReadingEast Central NA Regional 2021
#2947Ball of WhacksEast Central NA Regional 2021
#2948DownsizingEast Central NA Regional 2021
#2949Gambling GameEast Central NA Regional 2021
#2950Growing Some OobleckEast Central NA Regional 2021
#2951Noonerized SpumbersEast Central NA Regional 2021
#2952NumbleEast Central NA Regional 2021
#2953Pinned FilesEast Central NA Regional 2021
#2954RecyclingEast Central NA Regional 2021
#2955Stable TableEast Central NA Regional 2021
#2956StatuesEast Central NA Regional 2021
#2957Tomb HaterEast Central NA Regional 2021
#2958BettingRocky Mountain Regional 2021
#2959AntialiasingRocky Mountain Regional 2021
#2960Social DistancingRocky Mountain Regional 2021
#2961Pawn ShopRocky Mountain Regional 2021
#2962Election ParadoxRocky Mountain Regional 2021
#2963Protect the Pollen!Rocky Mountain Regional 2021
#2964Loot ChestRocky Mountain Regional 2021
#2965RSA MistakeRocky Mountain Regional 2021
#2966Slide CountRocky Mountain Regional 2021
#2967Snowball FightRocky Mountain Regional 2021
#2968Team ChangeRocky Mountain Regional 2021
#2969Ticket Completed?Rocky Mountain Regional 2021
#2970Trade RoutesRocky Mountain Regional 2021
#2971Wordle with FriendsRocky Mountain Regional 2021
#2972与或和GXOI 2019GZOI 2019
#2973宝牌一大堆GXOI 2019GZOI 2019
#2974特技飞行GXOI 2019GZOI 2019
#2975逼死强迫症GXOI 2019GZOI 2019
#2976旅行者GXOI 2019GZOI 2019
#2977旧词GXOI 2019GZOI 2019
#2978二进制BJOI 2018 Day 1
#2979染色BJOI 2018 Day 1
#2980求和BJOI 2018 Day 1
#2981双人猜数游戏BJOI 2018 Day 2Output Only
#2982链上二次求和BJOI 2018 Day 2
#2983治疗之雨BJOI 2018 Day 2
#2984奇怪的背包HAOI 2018 Round 1
#2985反色游戏HAOI 2018 Round 1
#2986字串覆盖HAOI 2018 Round 1
#2987苹果树HAOI 2018 Round 2
#2988染色HAOI 2018 Round 2
#2989一双木棋联合省选 2018
#2990IIIDX联合省选 2018
#2991秘密袭击联合省选 2018
#2992劈配联合省选 2018
#2993林克卡特树联合省选 2018
#2994制胡窜联合省选 2018
#2995异或粽子联合省选 2019
#2996字符串问题联合省选 2019
#2997骗分过样例联合省选 2019
#2998皮配联合省选 2019
#2999春节十二响联合省选 2019
#3000希望联合省选 2019
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English 繁體中文 简体中文

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