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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 |
| 2310 | Cubic Tick-Tack-Toe | 11%(121/1010) | Dec 1, 2025 |
| 2383 | Circle Drawing | 14%(366/2478) | Nov 21, 2025 |
| 2333 | Beach cut | 19%(197/1015) | Nov 21, 2025 |
| 2347 | Equations | 19%(183/917) | Dec 1, 2025 |
| 2314 | POJ language | 20%(91/438) | Oct 18, 2025 |
| 2399 | A Mayor Problem | 21%(58/271) | Dec 1, 2025 |
| 2391 | Ombrophobic Bovines | 21%(5088/23539) | Nov 21, 2025 |
| 2300 | Up the Ante | 22%(86/378) | Dec 1, 2025 |
| 2308 | Dearboy's Puzzle | 22%(498/2175) | Dec 1, 2025 |
| 2360 | Trains | 23%(55/239) | Dec 1, 2025 |
| 2338 | Basic | 24%(249/1026) | Oct 19, 2025 |
| 2376 | Cleaning Shifts | 24%(14939/60374) | Dec 6, 2025 |
| 2375 | Cow Ski Area | 25%(1228/4905) | Nov 20, 2025 |
| 2379 | ACM Rank Table | 25%(1693/6745) | Nov 21, 2025 |
| 2319 | COMPRESS | 25%(148/585) | Oct 18, 2025 |
| 2303 | Russian Dolls | 25%(351/1364) | Dec 1, 2025 |
| 2337 | Catenyms | 26%(3820/14581) | Oct 21, 2025 |
| 2382 | Radio Coverage | 26%(280/1050) | Oct 20, 2025 |
| 2306 | Genealogical Research | 26%(88/330) | Oct 21, 2025 |
| 2354 | Titanic | 26%(983/3649) | Nov 21, 2025 |
| 2381 | Random Gap | 26%(1540/5707) | Nov 20, 2025 |
| 2368 | Buttons | 27%(1623/5956) | Dec 1, 2025 |
| 2307 | Treasure Map | 27%(91/330) | Nov 21, 2025 |
| 2341 | Spell checker | 28%(264/929) | Dec 4, 2025 |
| 2331 | Water pipe | 28%(790/2765) | Dec 1, 2025 |
| 2364 | Faucet Flow | 28%(134/464) | Dec 1, 2025 |
| 2351 | Time Zones | 28%(811/2807) | Dec 1, 2025 |
| 2380 | Sales Report | 29%(623/2122) | Dec 1, 2025 |
| 2349 | Arctic Network | 30%(12243/40748) | Dec 7, 2025 |
| 2322 | PLANKS | 30%(125/412) | Dec 1, 2025 |
| 2387 | Til the Cows Come Home | 31%(44406/141738) | Dec 6, 2025 |
| 2329 | Nearest number - 2 | 31%(1464/4665) | Nov 21, 2025 |
| 2361 | Tic Tac Toe | 31%(2170/6832) | Nov 21, 2025 |
| 2353 | Ministry | 32%(1939/6020) | Nov 21, 2025 |
| 2362 | Square | 32%(10516/32533) | Nov 26, 2025 |
| 2343 | Airline company | 32%(150/460) | Dec 1, 2025 |
| 2335 | Temple of Dune | 32%(206/631) | Nov 25, 2025 |
| 2374 | Fence Obstacle Course | 33%(1263/3729) | Dec 1, 2025 |
| 2312 | Battle City | 33%(4616/13627) | Dec 1, 2025 |
| 2373 | Dividing the Path | 33%(2698/7942) | Dec 1, 2025 |
| 2328 | Guessing Game | 34%(5639/16206) | Nov 25, 2025 |
| 2332 | One is good, but two is better | 34%(162/465) | Dec 1, 2025 |
| 2365 | Rope | 34%(2699/7730) | Nov 20, 2025 |
| 2372 | D++ Again | 35%(207/586) | Dec 1, 2025 |
| 2355 | Railway tickets | 35%(1416/3993) | Dec 1, 2025 |
| 2311 | Cutting Game | 36%(3372/9353) | Dec 1, 2025 |
| 2394 | Checking an Alibi | 36%(2896/7942) | Nov 21, 2025 |
| 2366 | Sacrament of the sum | 36%(4063/11084) | Nov 20, 2025 |
| 2396 | Budget | 36%(3803/10318) | Nov 30, 2025 |
| 2397 | Spiderman | 37%(789/2104) | Nov 21, 2025 |
| 2359 | Questions | 38%(753/1978) | Nov 25, 2025 |
| 2313 | Sequence | 38%(1689/4361) | Nov 25, 2025 |
| 2348 | Euclid's Game | 39%(5488/13916) | Dec 3, 2025 |
| 2395 | Out of Hay | 39%(9486/23750) | Dec 5, 2025 |
| 2320 | SHEET | 40%(149/372) | Nov 21, 2025 |
| 2377 | Bad Cowtractors | 40%(9312/22969) | Dec 5, 2025 |
| 2352 | Stars | 41%(29654/71367) | Dec 1, 2025 |
| 2340 | Memory management | 41%(321/770) | Dec 1, 2025 |
| 2356 | Find a multiple | 41%(5481/13103) | Dec 6, 2025 |
| 2324 | Intellectual Property | 41%(76/181) | Oct 18, 2025 |
| 2384 | Harder Sokoban Problem | 42%(391/929) | Oct 20, 2025 |
| 2315 | Football Game | 42%(307/724) | Oct 21, 2025 |
| 2305 | Basic remains | 42%(2638/6161) | Nov 20, 2025 |
| 2334 | Simple prefix compression | 42%(886/2064) | Nov 20, 2025 |
| 2318 | TOYS | 43%(12070/27642) | Nov 21, 2025 |
| 2344 | Nikifor | 43%(109/249) | Dec 1, 2025 |
| 2358 | Queens in peaceful positions | 44%(589/1322) | Nov 21, 2025 |
| 2325 | Persistent Numbers | 46%(2439/5244) | Dec 1, 2025 |
| 2317 | SHAKE | 47%(332/704) | Dec 1, 2025 |
| 2302 | Traditional BINGO | 47%(592/1249) | Nov 21, 2025 |
| 2392 | Space Elevator | 47%(8293/17475) | Nov 21, 2025 |
| 2386 | Lake Counting | 47%(34462/72511) | Dec 7, 2025 |
| 2330 | Advanced ASCII Cubes | 47%(390/820) | Dec 1, 2025 |
| 2301 | Beat the Spread! | 47%(10172/21379) | Nov 20, 2025 |
| 2363 | Blocks | 47%(4075/8504) | Nov 21, 2025 |
| 2345 | Central heating | 48%(530/1103) | Nov 21, 2025 |
| 2393 | Yogurt factory | 48%(11793/24425) | Dec 1, 2025 |
| 2336 | Ferry Loading II | 48%(2301/4700) | Nov 25, 2025 |
| 2357 | Labyrinth | 48%(331/676) | Dec 1, 2025 |
| 2321 | GYM | 49%(249/503) | Nov 25, 2025 |
| 2350 | Above Average | 49%(8856/17850) | Nov 21, 2025 |
| 2323 | PERMS | 49%(705/1419) | Nov 20, 2025 |
| 2385 | Apple Catching | 49%(10373/20842) | Nov 23, 2025 |
| 2389 | Bull Math | 50%(11779/23097) | Nov 30, 2025 |
| 2327 | Dumb Bones | 51%(211/409) | Dec 1, 2025 |
| 2316 | SPIN | 51%(3417/6620) | Nov 20, 2025 |
| 2371 | Questions and answers | 52%(6378/12130) | Nov 20, 2025 |
| 2369 | Permutations | 54%(2117/3872) | Nov 20, 2025 |
| 2326 | Major Scales | 55%(258/469) | Nov 21, 2025 |
| 2342 | Anniversary party | 56%(10061/17878) | Nov 23, 2025 |
| 2388 | Who's in the Middle | 56%(37851/66654) | Dec 7, 2025 |
| 2339 | Rock, Scissors, Paper | 57%(2627/4596) | Nov 25, 2025 |
| 2398 | Toy Storage | 57%(5857/10215) | Dec 1, 2025 |
| 2390 | Bank Interest | 59%(10814/18235) | Nov 25, 2025 |
| 2367 | Genealogical tree | 59%(8725/14700) | Dec 7, 2025 |
| 2378 | Tree Cutting | 59%(4112/6893) | Nov 21, 2025 |
| 2304 | Combination Lock | 60%(3168/5244) | Nov 25, 2025 |
| 2309 | BST | 60%(7465/12264) | Nov 20, 2025 |
| 2346 | Lucky tickets | 65%(2342/3574) | Nov 21, 2025 |
| 2370 | Democracy in danger | 72%(2829/3877) | Nov 20, 2025 |
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