Volume 21

Online Judge

Problem Set

Authors

Online Contests

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Web Board
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F.A.Qs
Statistical Charts

Current Contest
Past Contests
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Award Contest

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ID	Title	Ratio(AC/submit)	Date
3000	Frogger	28%(333/1160)	2024-5-28
3001	Gallup	46%(273/582)	2023-4-9
3002	Jackpot	33%(1539/4636)	2023-7-18
3003	Spiderman’s workout	38%(758/1969)	2022-10-11
3004	Subway planning	27%(424/1520)	2024-1-10
3005	Exploding CPU	42%(229/538)	2020-5-9
3006	Dirichlet's Theorem on Arithmetic Progressions	48%(11454/23414)	2024-7-14
3007	Organize Your Train part II	28%(2707/9614)	2024-3-2
3008	Hexerpents of Hexwamp	30%(102/334)	2024-6-30
3009	Curling 2.0	40%(17453/42663)	2024-7-25
3010	The Genome Database of All Space Life	29%(258/875)	2024-7-13
3011	Secrets in Shadows	22%(87/395)	2021-11-7
3012	A Number from Yanghui Triangle	41%(997/2402)	2024-7-18
3013	Big Christmas Tree	21%(6588/30682)	2024-7-26
3014	Cake Pieces and Plates	31%(2200/6925)	2022-10-26
3015	Expected Difference	26%(395/1493)	2021-8-9
3016	K-Monotonic	34%(504/1452)	2024-7-22
3017	Cut the Sequence	30%(4791/15662)	2024-7-21
3018	Giftbox	28%(1141/4036)	2024-6-20
3019	Image Rotation	29%(38/128)	2020-7-30
3020	Antenna Placement	48%(6623/13654)	2024-7-27
3021	e-Coins	48%(426/879)	2021-6-8
3022	The Uxuhul Voting System	45%(177/388)	2024-7-25
3023	Submarines	42%(170/398)	2023-12-11
3024	The Gossiping System	36%(136/371)	2024-7-27
3025	Rings	34%(404/1169)	2022-6-22
3026	Borg Maze	31%(7824/25202)	2024-7-24
3027	Base equality	60%(547/908)	2022-9-4
3028	Shoot-out	29%(315/1066)	2022-6-29
3029	Tour Guide	37%(332/896)	2023-7-3
3030	Nasty Hacks	69%(10026/14512)	2024-7-6
3031	Jezzball	34%(39/113)	2021-6-7
3032	Card Trick	68%(3528/5163)	2024-6-5
3033	Traveling Salesman	37%(170/453)	2024-7-14
3034	Whac-a-Mole	29%(1278/4294)	2023-12-12
3035	Random Walking	31%(274/875)	2023-5-15
3036	Honeycomb Walk	66%(1736/2620)	2024-4-2
3037	Skiing	25%(1829/7198)	2024-7-20
3038	Flying Right	34%(821/2413)	2024-7-16
3039	Close Encounter	36%(1334/3615)	2023-6-25
3040	Allowance	42%(5199/12282)	2024-7-24
3041	Asteroids	53%(18171/34253)	2024-7-25
3042	Grazing on the Run	40%(1192/2914)	2024-7-18
3043	Walk the Talk	41%(269/648)	2022-9-3
3044	City Skyline	43%(1694/3854)	2024-5-4
3045	Cow Acrobats	36%(4030/11025)	2024-7-24
3046	Ant Counting	37%(4433/11931)	2024-7-26
3047	Bovine Birthday	44%(1105/2504)	2024-6-24
3048	Max Factor	36%(3805/10386)	2024-7-26
3049	Securing the Barn	63%(1518/2407)	2024-6-18
3050	Hopscotch	62%(5885/9370)	2024-7-23
3051	Satellite Photographs	46%(3046/6614)	2024-5-13
3052	Geodes	30%(48/156)	2024-2-23
3053	Bowling	26%(240/894)	2024-6-3
3054	High Spies	26%(37/140)	2020-9-9
3055	Digital Friends	46%(546/1182)	2022-6-12
3056	The Bavarian Beer Party	37%(481/1269)	2022-10-15
3057	Evacuation	25%(1555/6001)	2024-6-22
3058	Decompression	48%(293/610)	2024-7-13
3059	Rummikub	35%(78/222)	2024-7-15
3060	Make it Manhattan	40%(474/1174)	2023-12-19
3061	Subsequence	38%(22066/57996)	2024-7-26
3062	Celebrity jeopardy	56%(9724/17317)	2024-7-20
3063	Sherlock Holmes	29%(257/875)	2022-4-25
3064	Payment System	37%(69/182)	2024-4-26
3065	Stargates	22%(554/2450)	2022-6-7
3066	Maximum	58%(543/925)	2023-3-4
3067	Japan	26%(11030/41623)	2024-7-25
3068	"Shortest" pair of paths	49%(1107/2218)	2024-6-25
3069	Saruman's Army	48%(14011/28857)	2024-7-25
3070	Fibonacci	64%(21612/33357)	2024-7-26
3071	Football	43%(4552/10524)	2024-7-26
3072	Robot	33%(612/1810)	2024-5-31
3073	Spam	56%(623/1110)	2024-7-15
3074	Sudoku	34%(5145/14796)	2024-7-24
3075	Tic-Tac-Toe	40%(918/2277)	2024-7-21
3076	Sudoku	45%(3067/6676)	2024-7-15
3077	Rounders	64%(5317/8254)	2024-7-17
3078	Q	68%(1278/1868)	2024-3-27
3079	Enigmatologically Cruciverbalistic	19%(125/656)	2024-6-14
3080	Blue Jeans	43%(12108/27610)	2024-7-24
3081	Core Wars	31%(68/219)	2024-4-2
3082	'Roid Rage	30%(299/977)	2024-7-15
3083	Children of the Candy Corn	42%(7824/18573)	2024-7-19
3084	Panic Room	52%(1216/2333)	2024-4-8
3085	Quick Change	70%(4551/6453)	2024-6-7
3086	Triangular Sums	69%(5653/8090)	2024-6-22
3087	Shuffle'm Up	44%(11497/25701)	2024-7-24
3088	Push Botton Lock	62%(1056/1677)	2024-3-22
3089	Sign Message Formatting	20%(22/108)	2024-3-26
3090	Visible Lattice Points	58%(7335/12489)	2024-7-20
3091	Triangular N-Queens Problem	43%(393/903)	2024-3-27
3092	Non-divisible 2-3 Power Sums	46%(524/1123)	2024-3-26
3093	Margaritas on the River Walk	37%(1258/3315)	2024-3-25
3094	Quicksum	66%(14333/21511)	2024-7-23
3095	Linear Pachinko	69%(1193/1706)	2024-7-17
3096	Surprising Strings	59%(5704/9637)	2024-7-24
3097	Falling Ice	26%(108/412)	2024-6-14
3098	Frugal Search	46%(492/1069)	2022-9-7
3099	Go Go Gorelians	57%(536/934)	2024-6-25

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