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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 |
| 2324 | Intellectual Property | 41%(76/182) | Dec 9, 2025 |
| 2360 | Trains | 22%(55/242) | Mar 5, 2026 |
| 2344 | Nikifor | 43%(114/262) | Aug 17, 2026 |
| 2399 | A Mayor Problem | 21%(59/275) | Jun 10, 2026 |
| 2307 | Treasure Map | 27%(91/331) | Dec 9, 2025 |
| 2306 | Genealogical Research | 26%(88/332) | Mar 5, 2026 |
| 2300 | Up the Ante | 22%(86/381) | May 7, 2026 |
| 2320 | SHEET | 40%(155/385) | Apr 3, 2026 |
| 2322 | PLANKS | 30%(125/413) | Dec 9, 2025 |
| 2327 | Dumb Bones | 52%(217/416) | Apr 5, 2026 |
| 2314 | POJ language | 20%(91/440) | Jan 7, 2026 |
| 2343 | Airline company | 32%(151/461) | Dec 9, 2025 |
| 2364 | Faucet Flow | 28%(134/467) | May 9, 2026 |
| 2332 | One is good, but two is better | 34%(162/468) | Mar 5, 2026 |
| 2326 | Major Scales | 54%(260/474) | Sep 5, 2026 |
| 2321 | GYM | 49%(255/512) | Sep 5, 2026 |
| 2372 | D++ Again | 35%(211/593) | Aug 5, 2026 |
| 2319 | COMPRESS | 25%(152/596) | Jun 27, 2026 |
| 2335 | Temple of Dune | 33%(212/641) | Sep 6, 2026 |
| 2357 | Labyrinth | 48%(332/678) | Aug 29, 2026 |
| 2317 | SHAKE | 47%(333/706) | Aug 29, 2026 |
| 2315 | Football Game | 42%(307/730) | May 16, 2026 |
| 2340 | Memory management | 41%(326/783) | Apr 3, 2026 |
| 2330 | Advanced ASCII Cubes | 47%(391/822) | Aug 27, 2026 |
| 2347 | Equations | 19%(184/921) | May 7, 2026 |
| 2384 | Harder Sokoban Problem | 41%(392/936) | Aug 29, 2026 |
| 2341 | Spell checker | 29%(275/944) | Sep 5, 2026 |
| 2310 | Cubic Tick-Tack-Toe | 11%(121/1014) | Mar 5, 2026 |
| 2333 | Beach cut | 19%(197/1015) | Nov 21, 2025 |
| 2338 | Basic | 24%(252/1036) | Sep 5, 2026 |
| 2382 | Radio Coverage | 26%(280/1051) | Dec 9, 2025 |
| 2345 | Central heating | 47%(535/1115) | Aug 27, 2026 |
| 2302 | Traditional BINGO | 47%(599/1257) | Apr 3, 2026 |
| 2358 | Queens in peaceful positions | 44%(592/1335) | Aug 26, 2026 |
| 2303 | Russian Dolls | 25%(351/1365) | Dec 9, 2025 |
| 2323 | PERMS | 50%(719/1433) | Aug 9, 2026 |
| 2359 | Questions | 38%(754/1979) | Aug 9, 2026 |
| 2334 | Simple prefix compression | 42%(887/2067) | Aug 8, 2026 |
| 2397 | Spiderman | 37%(790/2105) | Aug 9, 2026 |
| 2380 | Sales Report | 29%(630/2137) | Aug 13, 2026 |
| 2308 | Dearboy's Puzzle | 22%(499/2177) | Sep 5, 2026 |
| 2383 | Circle Drawing | 14%(379/2544) | Sep 5, 2026 |
| 2331 | Water pipe | 28%(791/2767) | Aug 13, 2026 |
| 2351 | Time Zones | 29%(818/2815) | Jun 24, 2026 |
| 2346 | Lucky tickets | 65%(2354/3589) | Jun 28, 2026 |
| 2354 | Titanic | 26%(988/3680) | Aug 13, 2026 |
| 2374 | Fence Obstacle Course | 33%(1269/3754) | Aug 8, 2026 |
| 2369 | Permutations | 54%(2120/3875) | Aug 7, 2026 |
| 2370 | Democracy in danger | 73%(2840/3889) | Apr 3, 2026 |
| 2355 | Railway tickets | 35%(1417/3996) | Aug 8, 2026 |
| 2313 | Sequence | 38%(1703/4377) | Aug 7, 2026 |
| 2339 | Rock, Scissors, Paper | 57%(2637/4609) | Apr 3, 2026 |
| 2329 | Nearest number - 2 | 31%(1467/4676) | Aug 7, 2026 |
| 2336 | Ferry Loading II | 49%(2309/4709) | Apr 5, 2026 |
| 2375 | Cow Ski Area | 25%(1232/4917) | Aug 8, 2026 |
| 2304 | Combination Lock | 60%(3168/5244) | Nov 25, 2025 |
| 2325 | Persistent Numbers | 46%(2439/5248) | Mar 5, 2026 |
| 2381 | Random Gap | 27%(1551/5719) | Apr 3, 2026 |
| 2368 | Buttons | 27%(1644/6027) | Aug 8, 2026 |
| 2353 | Ministry | 32%(1950/6067) | Aug 7, 2026 |
| 2305 | Basic remains | 42%(2647/6177) | Aug 6, 2026 |
| 2316 | SPIN | 51%(3425/6629) | Apr 21, 2026 |
| 2379 | ACM Rank Table | 25%(1704/6762) | Aug 7, 2026 |
| 2361 | Tic Tac Toe | 31%(2182/6845) | Apr 21, 2026 |
| 2378 | Tree Cutting | 59%(4142/6943) | Aug 30, 2026 |
| 2365 | Rope | 34%(2700/7731) | Aug 5, 2026 |
| 2394 | Checking an Alibi | 36%(2906/7957) | Aug 31, 2026 |
| 2373 | Dividing the Path | 33%(2716/7994) | Aug 11, 2026 |
| 2363 | Blocks | 47%(4088/8519) | May 25, 2026 |
| 2311 | Cutting Game | 36%(3432/9462) | Aug 7, 2026 |
| 2398 | Toy Storage | 57%(5879/10254) | Aug 5, 2026 |
| 2396 | Budget | 36%(3858/10674) | Aug 19, 2026 |
| 2366 | Sacrament of the sum | 36%(4074/11099) | Aug 5, 2026 |
| 2371 | Questions and answers | 52%(6387/12141) | Aug 5, 2026 |
| 2309 | BST | 60%(7477/12276) | Aug 16, 2026 |
| 2356 | Find a multiple | 42%(5603/13319) | Sep 3, 2026 |
| 2348 | Euclid's Game | 39%(5512/13957) | Aug 1, 2026 |
| 2312 | Battle City | 34%(4889/14162) | Aug 20, 2026 |
| 2337 | Catenyms | 26%(3832/14605) | Sep 3, 2026 |
| 2367 | Genealogical tree | 59%(8760/14752) | Aug 29, 2026 |
| 2328 | Guessing Game | 34%(5642/16210) | Apr 5, 2026 |
| 2392 | Space Elevator | 47%(8318/17517) | Sep 3, 2026 |
| 2350 | Above Average | 49%(8953/18057) | Jun 2, 2026 |
| 2342 | Anniversary party | 56%(10229/18079) | Aug 16, 2026 |
| 2390 | Bank Interest | 59%(10819/18240) | Aug 3, 2026 |
| 2385 | Apple Catching | 49%(10401/20884) | Aug 29, 2026 |
| 2301 | Beat the Spread! | 47%(10197/21426) | Jun 26, 2026 |
| 2377 | Bad Cowtractors | 40%(9329/22999) | Sep 3, 2026 |
| 2389 | Bull Math | 51%(12136/23482) | Aug 26, 2026 |
| 2391 | Ombrophobic Bovines | 21%(5096/23560) | Aug 19, 2026 |
| 2395 | Out of Hay | 39%(9511/23790) | Sep 1, 2026 |
| 2393 | Yogurt factory | 48%(11816/24455) | Aug 16, 2026 |
| 2318 | TOYS | 43%(12145/27778) | Sep 4, 2026 |
| 2362 | Square | 32%(10540/32594) | Aug 14, 2026 |
| 2349 | Arctic Network | 30%(12402/40985) | Sep 1, 2026 |
| 2376 | Cleaning Shifts | 25%(15384/60947) | Sep 3, 2026 |
| 2388 | Who's in the Middle | 57%(38584/67618) | Aug 24, 2026 |
| 2352 | Stars | 41%(29741/71580) | Sep 3, 2026 |
| 2386 | Lake Counting | 48%(35469/73759) | Aug 28, 2026 |
| 2387 | Til the Cows Come Home | 31%(44557/142054) | Sep 4, 2026 |
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