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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 |
| 2300 | Up the Ante | 22%(86/379) | Dec 9, 2025 |
| 2301 | Beat the Spread! | 47%(10172/21379) | Nov 20, 2025 |
| 2302 | Traditional BINGO | 47%(592/1250) | Jan 9, 2026 |
| 2303 | Russian Dolls | 25%(351/1365) | Dec 9, 2025 |
| 2304 | Combination Lock | 60%(3168/5244) | Nov 25, 2025 |
| 2305 | Basic remains | 42%(2639/6164) | Jan 8, 2026 |
| 2306 | Genealogical Research | 26%(88/331) | Dec 9, 2025 |
| 2307 | Treasure Map | 27%(91/331) | Dec 9, 2025 |
| 2308 | Dearboy's Puzzle | 22%(498/2176) | Dec 9, 2025 |
| 2309 | BST | 60%(7466/12265) | Dec 24, 2025 |
| 2310 | Cubic Tick-Tack-Toe | 11%(121/1011) | Dec 9, 2025 |
| 2311 | Cutting Game | 36%(3374/9359) | Jan 8, 2026 |
| 2312 | Battle City | 33%(4617/13631) | Dec 21, 2025 |
| 2313 | Sequence | 38%(1690/4363) | Dec 30, 2025 |
| 2314 | POJ language | 20%(91/440) | Jan 7, 2026 |
| 2315 | Football Game | 42%(307/726) | Jan 7, 2026 |
| 2316 | SPIN | 51%(3417/6621) | Jan 8, 2026 |
| 2317 | SHAKE | 47%(332/705) | Dec 9, 2025 |
| 2318 | TOYS | 43%(12077/27668) | Feb 26, 2026 |
| 2319 | COMPRESS | 25%(148/587) | Jan 8, 2026 |
| 2320 | SHEET | 39%(149/374) | Jan 8, 2026 |
| 2321 | GYM | 49%(250/506) | Feb 2, 2026 |
| 2322 | PLANKS | 30%(125/413) | Dec 9, 2025 |
| 2323 | PERMS | 49%(707/1421) | Jan 7, 2026 |
| 2324 | Intellectual Property | 41%(76/182) | Dec 9, 2025 |
| 2325 | Persistent Numbers | 46%(2439/5247) | Jan 8, 2026 |
| 2326 | Major Scales | 54%(258/471) | Jan 8, 2026 |
| 2327 | Dumb Bones | 51%(213/412) | Jan 8, 2026 |
| 2328 | Guessing Game | 34%(5639/16206) | Nov 25, 2025 |
| 2329 | Nearest number - 2 | 31%(1464/4667) | Jan 8, 2026 |
| 2330 | Advanced ASCII Cubes | 47%(390/821) | Dec 9, 2025 |
| 2331 | Water pipe | 28%(790/2766) | Dec 9, 2025 |
| 2332 | One is good, but two is better | 34%(162/467) | Dec 9, 2025 |
| 2333 | Beach cut | 19%(197/1015) | Nov 21, 2025 |
| 2334 | Simple prefix compression | 42%(886/2066) | Jan 7, 2026 |
| 2335 | Temple of Dune | 32%(207/634) | Jan 7, 2026 |
| 2336 | Ferry Loading II | 48%(2301/4700) | Nov 25, 2025 |
| 2337 | Catenyms | 26%(3822/14589) | Jan 16, 2026 |
| 2338 | Basic | 24%(249/1027) | Dec 9, 2025 |
| 2339 | Rock, Scissors, Paper | 57%(2629/4598) | Jan 7, 2026 |
| 2340 | Memory management | 41%(321/773) | Jan 8, 2026 |
| 2341 | Spell checker | 28%(264/933) | Dec 9, 2025 |
| 2342 | Anniversary party | 56%(10064/17886) | Jan 7, 2026 |
| 2343 | Airline company | 32%(151/461) | Dec 9, 2025 |
| 2344 | Nikifor | 43%(109/251) | Jan 7, 2026 |
| 2345 | Central heating | 47%(530/1105) | Jan 8, 2026 |
| 2346 | Lucky tickets | 65%(2344/3576) | Jan 7, 2026 |
| 2347 | Equations | 19%(183/918) | Dec 9, 2025 |
| 2348 | Euclid's Game | 39%(5490/13925) | Feb 25, 2026 |
| 2349 | Arctic Network | 30%(12252/40769) | Feb 4, 2026 |
| 2350 | Above Average | 49%(8858/17852) | Dec 13, 2025 |
| 2351 | Time Zones | 28%(812/2809) | Feb 2, 2026 |
| 2352 | Stars | 41%(29681/71444) | Feb 25, 2026 |
| 2353 | Ministry | 32%(1939/6024) | Jan 8, 2026 |
| 2354 | Titanic | 26%(983/3653) | Jan 8, 2026 |
| 2355 | Railway tickets | 35%(1416/3995) | Dec 14, 2025 |
| 2356 | Find a multiple | 42%(5538/13183) | Feb 26, 2026 |
| 2357 | Labyrinth | 48%(331/677) | Dec 9, 2025 |
| 2358 | Queens in peaceful positions | 44%(589/1324) | Jan 8, 2026 |
| 2359 | Questions | 38%(753/1978) | Nov 25, 2025 |
| 2360 | Trains | 23%(55/239) | Dec 1, 2025 |
| 2361 | Tic Tac Toe | 31%(2172/6835) | Jan 7, 2026 |
| 2362 | Square | 32%(10520/32537) | Feb 25, 2026 |
| 2363 | Blocks | 47%(4076/8505) | Jan 8, 2026 |
| 2364 | Faucet Flow | 28%(134/465) | Dec 9, 2025 |
| 2365 | Rope | 34%(2699/7730) | Nov 20, 2025 |
| 2366 | Sacrament of the sum | 36%(4065/11086) | Jan 7, 2026 |
| 2367 | Genealogical tree | 59%(8729/14716) | Feb 3, 2026 |
| 2368 | Buttons | 27%(1633/6004) | Jan 25, 2026 |
| 2369 | Permutations | 54%(2117/3872) | Nov 20, 2025 |
| 2370 | Democracy in danger | 72%(2829/3878) | Jan 8, 2026 |
| 2371 | Questions and answers | 52%(6380/12132) | Jan 8, 2026 |
| 2372 | D++ Again | 35%(207/588) | Jan 7, 2026 |
| 2373 | Dividing the Path | 33%(2699/7945) | Jan 7, 2026 |
| 2374 | Fence Obstacle Course | 33%(1264/3740) | Jan 13, 2026 |
| 2375 | Cow Ski Area | 25%(1228/4907) | Jan 8, 2026 |
| 2376 | Cleaning Shifts | 24%(14962/60445) | Feb 6, 2026 |
| 2377 | Bad Cowtractors | 40%(9313/22973) | Jan 24, 2026 |
| 2378 | Tree Cutting | 59%(4112/6894) | Jan 8, 2026 |
| 2379 | ACM Rank Table | 25%(1694/6746) | Jan 16, 2026 |
| 2380 | Sales Report | 29%(623/2125) | Jan 8, 2026 |
| 2381 | Random Gap | 27%(1543/5710) | Jan 8, 2026 |
| 2382 | Radio Coverage | 26%(280/1051) | Dec 9, 2025 |
| 2383 | Circle Drawing | 14%(366/2480) | Jan 8, 2026 |
| 2384 | Harder Sokoban Problem | 41%(391/931) | Jan 8, 2026 |
| 2385 | Apple Catching | 49%(10378/20848) | Feb 5, 2026 |
| 2386 | Lake Counting | 47%(34572/72702) | Feb 5, 2026 |
| 2387 | Til the Cows Come Home | 31%(44424/141843) | Feb 25, 2026 |
| 2388 | Who's in the Middle | 56%(38046/66909) | Jan 31, 2026 |
| 2389 | Bull Math | 50%(11779/23097) | Nov 30, 2025 |
| 2390 | Bank Interest | 59%(10816/18237) | Jan 7, 2026 |
| 2391 | Ombrophobic Bovines | 21%(5091/23545) | Jan 15, 2026 |
| 2392 | Space Elevator | 47%(8297/17481) | Feb 1, 2026 |
| 2393 | Yogurt factory | 48%(11797/24429) | Feb 2, 2026 |
| 2394 | Checking an Alibi | 36%(2897/7943) | Jan 17, 2026 |
| 2395 | Out of Hay | 39%(9487/23754) | Jan 25, 2026 |
| 2396 | Budget | 36%(3804/10355) | Jan 31, 2026 |
| 2397 | Spiderman | 37%(789/2104) | Nov 21, 2025 |
| 2398 | Toy Storage | 57%(5862/10222) | Feb 3, 2026 |
| 2399 | A Mayor Problem | 21%(58/272) | Dec 9, 2025 |
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