Volume 28

Online Judge

Problem Set

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Online Contests

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F.A.Qs
Statistical Charts

Current Contest
Past Contests
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ID	Title	Ratio(AC/submit)	Date
3796	Spatial Concepts Test	42%(29/68)	2024-11-23
3793	Joe’s Triangular Gardens	47%(50/106)	2025-1-18
3772	Baseball of Planet Pandora	41%(65/155)	2021-3-20
3769	Baseball on the Mercury	28%(47/164)	2020-2-1
3777	Snail Alice	31%(61/196)	2020-11-25
3799	Optimal Strategy for the ICPC	12%(26/206)	2021-12-23
3770	Baseball on the Mars	13%(27/206)	2023-5-31
3795	The Two Note Rag	61%(131/214)	2023-11-12
3706	System Test	27%(60/218)	2024-7-18
3798	Cave Crisis	20%(49/239)	2024-11-26
3773	String-Matching Automata	58%(142/242)	2021-6-21
3759	Simple Distributed computing system	35%(91/255)	2019-9-25
3745	Keep Contact	5%(14/266)	2025-1-21
3775	Chase	28%(85/303)	2021-3-22
3792	Area of Polycubes	43%(133/308)	2024-12-4
3701	Rubik's Cube: 0-1 Version	15%(50/316)	2019-12-1
3788	Interior Points of Lattice Polygons	59%(196/332)	2024-9-18
3774	Elune’s Arrow	34%(119/350)	2021-3-21
3791	Text Messaging Improvement?	29%(104/352)	2024-12-18
3707	High-Dimensional Vector Correspondence	6%(22/365)	2019-12-15
3730	Ebbinghaus method	20%(84/409)	2024-2-3
3755	The Training of Chain Lightning	17%(75/435)	2024-8-2
3722	We're Going In	6%(28/448)	2019-9-25
3780	Tour Route	1%(6/501)	2024-9-12
3733	Shadow Area	15%(81/522)	2024-3-16
3794	Extended Normal Order Sort	24%(130/523)	2024-9-14
3779	Single CPU, multi-tasking	29%(156/532)	2021-3-21
3704	Mover	14%(77/549)	2024-7-19
3718	Facer's Chocolate Dream	33%(204/614)	2024-12-2
3789	Binary Clock	65%(410/626)	2024-12-10
3758	The story of three kingdoms XI	8%(52/629)	2024-12-3
3787	Convex Hull of Lattice Points	54%(356/652)	2024-9-25
3797	Tiling a Grid With Dominoes	63%(417/660)	2024-11-20
3721	Darkterror's Combos	16%(108/668)	2021-12-23
3717	Decrypt the Dragon Scroll	26%(179/674)	2023-10-31
3703	Intuition of Escape	18%(127/695)	2019-9-23
3726	Windy's ABC	42%(300/709)	2024-9-24
3786	Adjacent Bit Counts	80%(586/731)	2024-7-17
3738	Card Game	18%(135/737)	2022-5-23
3754	模拟Modbus协议	44%(336/756)	2021-5-20
3778	An Odd Award Rule	34%(261/758)	2024-7-25
3743	LL’s cake	32%(258/799)	2024-4-6
3776	Passing the Message	48%(410/852)	2024-12-14
3790	Recursively Palindromic Partitions	64%(568/874)	2024-8-1
3712	Edges and More Edges	23%(214/930)	2024-10-28
3719	Art of Balance	31%(300/962)	2020-2-26
3732	Paint Me Less	19%(197/994)	2022-9-5
3771	World Islands	26%(270/1024)	2024-7-31
3766	Hexagon Coin Toss	25%(278/1104)	2021-3-17
3727	Newton’s Method	15%(171/1125)	2024-9-17
3765	Xiang Hex	49%(571/1152)	2024-8-18
3746	Teacher YYF	41%(502/1205)	2024-12-4
3756	Chess Game	33%(437/1300)	2019-9-25
3741	Number System Converter	20%(275/1328)	2024-7-22
3782	Equal Sum Partitions	64%(859/1340)	2024-7-21
3763	Tour in Wonder Land	29%(412/1378)	2021-6-15
3708	Recurrent Function	27%(387/1406)	2024-11-18
3736	Snipe the Sniper	37%(547/1471)	2024-7-30
3785	The Next Permutation	64%(961/1496)	2024-7-22
3702	Chessman	42%(633/1499)	2021-3-18
3747	Scout YYF II	24%(396/1643)	2023-6-15
3739	Special Squares	28%(504/1788)	2025-1-20
3716	Panda's Birthday Present	65%(1177/1804)	2024-12-21
3711	Mayan Pyramid	16%(316/1941)	2024-12-31
3731	Escape	31%(653/2044)	2023-6-3
3757	Simple Distributed storage system	18%(427/2310)	2024-12-14
3781	Nth Largest Value	64%(1551/2422)	2024-10-23
3760	魔兽世界(修订版)	22%(575/2512)	2024-7-30
3729	Facer’s string	29%(741/2527)	2024-6-28
3742	Equivalent Polynomial	27%(747/2724)	2024-12-25
3762	The Bonus Salary!	27%(765/2807)	2024-11-11
3725	I know the k-th integer	21%(664/3071)	2024-8-13
3783	Balls	63%(1968/3121)	2024-11-14
3724	Find the parameter	21%(695/3303)	2023-6-10
3705	Reverse	32%(1070/3319)	2024-12-12
3761	Bubble Sort	33%(1186/3551)	2024-11-26
3710	Christmas Game	30%(1166/3794)	2024-12-22
3767	I Wanna Go Home	42%(1648/3875)	2024-8-17
3715	Blue and Red	26%(1063/3997)	2024-12-5
3720	Occurrence of Digits	40%(1680/4143)	2023-6-27
3713	Transferring Sylla	27%(1143/4165)	2025-1-9
3753	根据关键字进行字符串拷贝	23%(1204/5105)	2024-12-20
3768	Repeater	25%(1348/5226)	2024-11-4
3700	Missile Defence System	25%(1331/5267)	2024-12-27
3728	The merchant	34%(2793/8078)	2025-1-19
3709	K-Anonymous Sequence	33%(2700/8084)	2024-12-4
3784	Running Median	42%(3471/8216)	2025-1-11
3752	字母旋转游戏	36%(3626/9884)	2024-11-29
3748	位操作	41%(4491/10875)	2024-12-4
3734	Blocks	49%(5459/11108)	2025-1-12
3751	时间日期格式转换	43%(4843/11225)	2024-8-14
3749	破译密码	58%(6867/11650)	2024-12-12
3737	UmBasketella	38%(4965/12946)	2025-1-17
3744	Scout YYF I	28%(3842/13436)	2025-1-10
3735	Training little cats	24%(4554/18765)	2024-12-11
3740	Easy Finding	27%(5478/19695)	2025-1-2
3764	The xor-longest Path	17%(3682/20890)	2025-1-8
3750	小孩报数问题	41%(10511/25303)	2025-1-4
3723	Conscription	32%(8862/26882)	2025-1-12
3714	Raid	25%(9645/37868)	2024-12-27

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