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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 |
| 1346 | Board of Directors Meeting | 13%(20/145) | May 29, 2026 |
| 1393 | Fold-up Patterns | 25%(40/159) | Jun 4, 2026 |
| 1345 | Address Recovery | 5%(9/179) | Aug 8, 2026 |
| 1357 | Afshung Pizza Delivery | 31%(63/199) | Aug 8, 2026 |
| 1361 | JaWs | 15%(32/206) | Jun 2, 2026 |
| 1397 | The Bulk | 39%(96/245) | Aug 8, 2026 |
| 1333 | Christmas Gifts | 26%(67/253) | Aug 8, 2026 |
| 1360 | Blue x Red = Bang | 9%(31/323) | Aug 8, 2026 |
| 1303 | Byte Me! | 35%(129/362) | Aug 8, 2026 |
| 1399 | Direct Visibility | 41%(162/389) | Aug 8, 2026 |
| 1372 | FORCAL | 23%(99/416) | Aug 8, 2026 |
| 1358 | Housing Complexes | 36%(153/417) | Aug 8, 2026 |
| 1347 | Triangle | 19%(80/421) | Aug 8, 2026 |
| 1378 | Power Cable Problem | 45%(194/429) | Aug 8, 2026 |
| 1342 | Tag Trees | 26%(118/443) | Aug 8, 2026 |
| 1301 | The Umbrella Problem: 2054 | 34%(155/445) | Aug 8, 2026 |
| 1334 | Two Mountaineers | 39%(186/475) | Aug 8, 2026 |
| 1311 | Doing Windows | 27%(134/483) | Aug 8, 2026 |
| 1344 | Tree Size Problem | 53%(285/532) | Sep 5, 2026 |
| 1359 | Spacecraft Malfunction | 36%(196/538) | Aug 8, 2026 |
| 1335 | Digital Onion | 26%(147/546) | Aug 8, 2026 |
| 1369 | Append | 24%(137/561) | Aug 8, 2026 |
| 1388 | Hinge Node Problem | 61%(350/568) | Sep 5, 2026 |
| 1370 | Gossiping | 34%(203/589) | Aug 8, 2026 |
| 1352 | Quantity of White Mice | 28%(172/594) | Aug 14, 2026 |
| 1374 | Crosswords | 29%(179/597) | Aug 8, 2026 |
| 1353 | Color Change of Go Game Pieces | 60%(364/599) | Aug 28, 2026 |
| 1310 | Nonstop Travel | 33%(201/604) | Aug 8, 2026 |
| 1327 | Moving Object Recognition | 56%(354/622) | Sep 5, 2026 |
| 1356 | Grandpa's Other Estate | 45%(285/628) | Aug 29, 2026 |
| 1343 | Rooted Trees Isomorphism | 27%(182/658) | Aug 8, 2026 |
| 1382 | The Proper Key | 34%(236/677) | Aug 8, 2026 |
| 1307 | Mapping the Route | 35%(245/690) | Sep 5, 2026 |
| 1367 | Time | 27%(192/700) | Aug 8, 2026 |
| 1340 | The Longest Detour Problem | 33%(233/700) | Aug 8, 2026 |
| 1302 | Blue Gene, Jr. | 59%(442/748) | Aug 15, 2026 |
| 1362 | Skew Binary | 54%(412/761) | Aug 15, 2026 |
| 1368 | Puzzle | 19%(160/801) | Aug 8, 2026 |
| 1341 | The Strongest Subchains | 22%(183/824) | Aug 8, 2026 |
| 1371 | Tin Cutter | 33%(293/875) | Sep 5, 2026 |
| 1381 | Secret Code | 33%(309/923) | Sep 6, 2026 |
| 1336 | The K-League | 35%(325/924) | Sep 5, 2026 |
| 1304 | World's Worst Bus Schedule | 34%(321/942) | Aug 29, 2026 |
| 1366 | Word | 26%(259/976) | Sep 5, 2026 |
| 1339 | poker card game | 34%(376/1077) | Aug 29, 2026 |
| 1377 | Good Approximation Problem | 23%(254/1083) | Aug 8, 2026 |
| 1349 | Coding of Permutations | 41%(448/1089) | Aug 15, 2026 |
| 1387 | The Constraint Densest Submatrix | 24%(279/1157) | Sep 5, 2026 |
| 1398 | Complete the sequence! | 48%(563/1158) | Aug 13, 2026 |
| 1355 | Selecting the Optimal Teaching Fiends | 14%(171/1191) | Aug 8, 2026 |
| 1373 | L-system | 12%(156/1204) | Aug 8, 2026 |
| 1394 | Railroad | 30%(417/1361) | Sep 5, 2026 |
| 1337 | A Lazy Worker | 34%(478/1381) | Aug 26, 2026 |
| 1312 | Numerically Speaking | 52%(729/1400) | Aug 9, 2026 |
| 1392 | Ouroboros Snake | 49%(827/1663) | Sep 2, 2026 |
| 1332 | Finding Liars | 42%(724/1712) | Aug 15, 2026 |
| 1351 | Number of Locks | 49%(868/1757) | Aug 8, 2026 |
| 1391 | Erdos Numbers | 25%(460/1784) | Sep 6, 2026 |
| 1354 | Placement of Keys | 51%(940/1842) | Aug 8, 2026 |
| 1319 | Pipe Fitters | 45%(863/1903) | Aug 8, 2026 |
| 1348 | Computing | 16%(320/1961) | Sep 5, 2026 |
| 1314 | Finding Rectangles | 37%(738/1987) | Aug 8, 2026 |
| 1305 | Fermat vs. Pythagoras | 56%(1139/2029) | Aug 8, 2026 |
| 1309 | Coconuts, Revisited | 41%(936/2275) | Aug 8, 2026 |
| 1395 | Cog-Wheels | 12%(286/2358) | Aug 8, 2026 |
| 1396 | Simple Arithmetics | 23%(556/2392) | Aug 15, 2026 |
| 1313 | Booklet Printing | 50%(1246/2463) | Aug 8, 2026 |
| 1315 | Don't Get Rooked | 62%(2017/3203) | Aug 19, 2026 |
| 1320 | Street Numbers | 54%(1871/3419) | Aug 25, 2026 |
| 1317 | Do the Untwist | 59%(2277/3796) | Aug 8, 2026 |
| 1389 | Area of Simple Polygons | 51%(2129/4130) | Aug 8, 2026 |
| 1300 | Door Man | 42%(1800/4192) | Aug 8, 2026 |
| 1385 | Lifting the Stone | 31%(1400/4496) | Aug 8, 2026 |
| 1380 | Equipment Box | 26%(1197/4516) | Aug 8, 2026 |
| 1329 | Circle Through Three Points | 39%(1979/5069) | Sep 3, 2026 |
| 1375 | Intervals | 29%(1594/5328) | Aug 8, 2026 |
| 1365 | Prime Land | 43%(2554/5809) | Aug 23, 2026 |
| 1331 | Multiply | 51%(3322/6411) | Aug 8, 2026 |
| 1383 | Labyrinth | 35%(2400/6738) | Aug 8, 2026 |
| 1390 | Blocks | 40%(3263/8014) | Aug 8, 2026 |
| 1376 | Robot | 32%(3532/10712) | Aug 8, 2026 |
| 1318 | Word Amalgamation | 47%(5364/11352) | Aug 8, 2026 |
| 1350 | Cabric Number Problem | 30%(3708/12189) | Aug 8, 2026 |
| 1379 | Run Away | 29%(3588/12318) | Aug 8, 2026 |
| 1306 | Combinations | 45%(5808/12893) | Aug 8, 2026 |
| 1323 | Game Prediction | 47%(6224/13019) | Aug 8, 2026 |
| 1322 | Chocolate | 26%(3533/13506) | Aug 17, 2026 |
| 1326 | Mileage Bank | 41%(6360/15236) | Aug 8, 2026 |
| 1364 | King | 34%(5869/17214) | Aug 5, 2026 |
| 1386 | Play on Words | 32%(5937/18371) | Sep 5, 2026 |
| 1384 | Piggy-Bank | 50%(10304/20381) | Aug 17, 2026 |
| 1325 | Machine Schedule | 41%(9153/22237) | Aug 28, 2026 |
| 1324 | Holedox Moving | 24%(5538/22372) | Sep 3, 2026 |
| 1316 | Self Numbers | 55%(14918/26998) | Aug 8, 2026 |
| 1338 | Ugly Numbers | 41%(13624/32578) | Sep 2, 2026 |
| 1330 | Nearest Common Ancestors | 47%(22915/48122) | Sep 5, 2026 |
| 1363 | Rails | 37%(19977/53656) | Aug 8, 2026 |
| 1308 | Is It A Tree? | 31%(17484/56027) | Sep 5, 2026 |
| 1321 | 棋盘问题 | 44%(61064/136155) | Sep 3, 2026 |
| 1328 | Radar Installation | 22%(40304/175429) | Sep 4, 2026 |
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