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| Online Judge | Problem Set | Authors | Online Contests | User | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest | |||||||||
| ID | Title | Ratio(AC/submit) | Date |
| 3000 | Frogger | 28%(340/1195) | Oct 13, 2026 |
| 3001 | Gallup | 47%(282/600) | Oct 13, 2026 |
| 3002 | Jackpot | 33%(1558/4665) | Oct 13, 2026 |
| 3003 | Spiderman’s workout | 38%(770/2017) | Oct 21, 2026 |
| 3004 | Subway planning | 28%(435/1544) | Oct 13, 2026 |
| 3005 | Exploding CPU | 42%(234/549) | Oct 13, 2026 |
| 3006 | Dirichlet's Theorem on Arithmetic Progressions | 48%(11637/23766) | Oct 13, 2026 |
| 3007 | Organize Your Train part II | 28%(2715/9666) | Oct 13, 2026 |
| 3008 | Hexerpents of Hexwamp | 30%(104/339) | Oct 16, 2026 |
| 3009 | Curling 2.0 | 40%(17782/43478) | Oct 13, 2026 |
| 3010 | The Genome Database of All Space Life | 29%(261/886) | Oct 13, 2026 |
| 3011 | Secrets in Shadows | 22%(89/399) | Oct 18, 2026 |
| 3012 | A Number from Yanghui Triangle | 41%(1007/2419) | Oct 13, 2026 |
| 3013 | Big Christmas Tree | 21%(6677/31079) | Oct 13, 2026 |
| 3014 | Cake Pieces and Plates | 31%(2218/6963) | Oct 13, 2026 |
| 3015 | Expected Difference | 26%(401/1510) | Oct 13, 2026 |
| 3016 | K-Monotonic | 34%(527/1510) | Oct 13, 2026 |
| 3017 | Cut the Sequence | 30%(4879/16058) | Oct 13, 2026 |
| 3018 | Giftbox | 28%(1157/4079) | Oct 13, 2026 |
| 3019 | Image Rotation | 26%(40/153) | Oct 21, 2026 |
| 3020 | Antenna Placement | 48%(6661/13721) | Oct 13, 2026 |
| 3021 | e-Coins | 48%(443/905) | Oct 13, 2026 |
| 3022 | The Uxuhul Voting System | 45%(186/406) | Oct 13, 2026 |
| 3023 | Submarines | 42%(177/413) | Oct 13, 2026 |
| 3024 | The Gossiping System | 36%(142/386) | Oct 16, 2026 |
| 3025 | Rings | 35%(416/1188) | Oct 13, 2026 |
| 3026 | Borg Maze | 31%(7886/25418) | Oct 13, 2026 |
| 3027 | Base equality | 60%(562/926) | Oct 13, 2026 |
| 3028 | Shoot-out | 29%(319/1078) | Oct 13, 2026 |
| 3029 | Tour Guide | 36%(343/952) | Oct 13, 2026 |
| 3030 | Nasty Hacks | 69%(10071/14573) | Oct 13, 2026 |
| 3031 | Jezzball | 35%(42/119) | Oct 16, 2026 |
| 3032 | Card Trick | 68%(3559/5232) | Oct 17, 2026 |
| 3033 | Traveling Salesman | 38%(175/460) | Oct 16, 2026 |
| 3034 | Whac-a-Mole | 29%(1305/4383) | Oct 13, 2026 |
| 3035 | Random Walking | 31%(283/891) | Oct 13, 2026 |
| 3036 | Honeycomb Walk | 66%(1793/2687) | Oct 13, 2026 |
| 3037 | Skiing | 25%(1842/7226) | Oct 13, 2026 |
| 3038 | Flying Right | 33%(861/2601) | Oct 13, 2026 |
| 3039 | Close Encounter | 37%(1355/3648) | Oct 13, 2026 |
| 3040 | Allowance | 42%(5230/12348) | Oct 13, 2026 |
| 3041 | Asteroids | 53%(18515/34759) | Oct 17, 2026 |
| 3042 | Grazing on the Run | 41%(1234/2998) | Oct 20, 2026 |
| 3043 | Walk the Talk | 41%(272/655) | Oct 13, 2026 |
| 3044 | City Skyline | 44%(1724/3899) | Oct 17, 2026 |
| 3045 | Cow Acrobats | 36%(4117/11365) | Oct 18, 2026 |
| 3046 | Ant Counting | 37%(4487/12037) | Oct 16, 2026 |
| 3047 | Bovine Birthday | 44%(1128/2535) | Oct 13, 2026 |
| 3048 | Max Factor | 36%(3855/10529) | Oct 19, 2026 |
| 3049 | Securing the Barn | 62%(1536/2440) | Oct 13, 2026 |
| 3050 | Hopscotch | 62%(6160/9846) | Oct 13, 2026 |
| 3051 | Satellite Photographs | 45%(3071/6686) | Oct 13, 2026 |
| 3052 | Geodes | 30%(52/169) | Oct 21, 2026 |
| 3053 | Bowling | 25%(248/968) | Oct 13, 2026 |
| 3054 | High Spies | 27%(39/144) | Oct 16, 2026 |
| 3055 | Digital Friends | 45%(557/1211) | Oct 13, 2026 |
| 3056 | The Bavarian Beer Party | 38%(490/1286) | Oct 13, 2026 |
| 3057 | Evacuation | 25%(1575/6065) | Oct 13, 2026 |
| 3058 | Decompression | 48%(300/623) | Oct 13, 2026 |
| 3059 | Rummikub | 34%(80/230) | Oct 16, 2026 |
| 3060 | Make it Manhattan | 40%(479/1183) | Oct 13, 2026 |
| 3061 | Subsequence | 38%(24183/62853) | Oct 21, 2026 |
| 3062 | Celebrity jeopardy | 56%(9817/17519) | Oct 13, 2026 |
| 3063 | Sherlock Holmes | 28%(261/901) | Oct 13, 2026 |
| 3064 | Payment System | 36%(72/198) | Oct 16, 2026 |
| 3065 | Stargates | 22%(561/2472) | Oct 13, 2026 |
| 3066 | Maximum | 57%(552/954) | Oct 13, 2026 |
| 3067 | Japan | 26%(11115/41964) | Oct 13, 2026 |
| 3068 | "Shortest" pair of paths | 50%(1211/2382) | Oct 13, 2026 |
| 3069 | Saruman's Army | 49%(14972/30199) | Oct 17, 2026 |
| 3070 | Fibonacci | 64%(22881/35414) | Oct 19, 2026 |
| 3071 | Football | 41%(4813/11591) | Oct 13, 2026 |
| 3072 | Robot | 33%(615/1821) | Oct 13, 2026 |
| 3073 | Spam | 56%(637/1133) | Oct 13, 2026 |
| 3074 | Sudoku | 34%(5184/14898) | Oct 15, 2026 |
| 3075 | Tic-Tac-Toe | 40%(932/2297) | Oct 13, 2026 |
| 3076 | Sudoku | 45%(3097/6780) | Oct 13, 2026 |
| 3077 | Rounders | 64%(5335/8274) | Oct 13, 2026 |
| 3078 | Q | 68%(1297/1888) | Oct 13, 2026 |
| 3079 | Enigmatologically Cruciverbalistic | 19%(129/667) | Oct 16, 2026 |
| 3080 | Blue Jeans | 43%(12181/27748) | Oct 13, 2026 |
| 3081 | Core Wars | 30%(71/231) | Oct 16, 2026 |
| 3082 | 'Roid Rage | 30%(305/986) | Oct 13, 2026 |
| 3083 | Children of the Candy Corn | 42%(7900/18732) | Oct 13, 2026 |
| 3084 | Panic Room | 51%(1226/2364) | Oct 13, 2026 |
| 3085 | Quick Change | 70%(4586/6492) | Oct 13, 2026 |
| 3086 | Triangular Sums | 69%(5751/8218) | Oct 13, 2026 |
| 3087 | Shuffle'm Up | 44%(11682/26117) | Oct 21, 2026 |
| 3088 | Push Botton Lock | 63%(1083/1713) | Oct 13, 2026 |
| 3089 | Sign Message Formatting | 20%(24/116) | Oct 16, 2026 |
| 3090 | Visible Lattice Points | 58%(7475/12823) | Oct 13, 2026 |
| 3091 | Triangular N-Queens Problem | 43%(402/920) | Oct 19, 2026 |
| 3092 | Non-divisible 2-3 Power Sums | 46%(529/1133) | Oct 18, 2026 |
| 3093 | Margaritas on the River Walk | 37%(1293/3418) | Oct 13, 2026 |
| 3094 | Quicksum | 66%(14597/22115) | Oct 13, 2026 |
| 3095 | Linear Pachinko | 69%(1200/1722) | Oct 13, 2026 |
| 3096 | Surprising Strings | 58%(5782/9811) | Oct 13, 2026 |
| 3097 | Falling Ice | 26%(111/422) | Oct 16, 2026 |
| 3098 | Frugal Search | 46%(501/1082) | Oct 13, 2026 |
| 3099 | Go Go Gorelians | 54%(595/1097) | Oct 13, 2026 |
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