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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 |
| 1300 | Door Man | 42%(1793/4180) | Mar 26, 2026 |
| 1301 | The Umbrella Problem: 2054 | 34%(153/443) | Mar 26, 2026 |
| 1302 | Blue Gene, Jr. | 59%(439/744) | Apr 13, 2026 |
| 1303 | Byte Me! | 35%(127/360) | Mar 26, 2026 |
| 1304 | World's Worst Bus Schedule | 33%(318/938) | Mar 26, 2026 |
| 1305 | Fermat vs. Pythagoras | 56%(1138/2028) | Mar 26, 2026 |
| 1306 | Combinations | 45%(5806/12891) | Mar 29, 2026 |
| 1307 | Mapping the Route | 35%(243/688) | Dec 9, 2025 |
| 1308 | Is It A Tree? | 31%(17466/55960) | Apr 12, 2026 |
| 1309 | Coconuts, Revisited | 41%(935/2274) | Mar 26, 2026 |
| 1310 | Nonstop Travel | 33%(200/603) | Mar 26, 2026 |
| 1311 | Doing Windows | 27%(132/475) | Dec 9, 2025 |
| 1312 | Numerically Speaking | 52%(727/1398) | Oct 14, 2025 |
| 1313 | Booklet Printing | 50%(1244/2461) | Mar 26, 2026 |
| 1314 | Finding Rectangles | 37%(735/1981) | Oct 14, 2025 |
| 1315 | Don't Get Rooked | 62%(1999/3185) | Apr 3, 2026 |
| 1316 | Self Numbers | 55%(14916/26996) | Feb 26, 2026 |
| 1317 | Do the Untwist | 59%(2276/3795) | Mar 26, 2026 |
| 1318 | Word Amalgamation | 47%(5363/11351) | Apr 5, 2026 |
| 1319 | Pipe Fitters | 45%(861/1901) | Oct 14, 2025 |
| 1320 | Street Numbers | 54%(1866/3412) | Oct 19, 2025 |
| 1321 | 棋盘问题 | 44%(60682/135710) | Apr 13, 2026 |
| 1322 | Chocolate | 26%(3514/13453) | Mar 7, 2026 |
| 1323 | Game Prediction | 47%(6221/13016) | Mar 26, 2026 |
| 1324 | Holedox Moving | 24%(5529/22360) | Nov 12, 2025 |
| 1325 | Machine Schedule | 40%(8971/22008) | Apr 14, 2026 |
| 1326 | Mileage Bank | 41%(6358/15234) | Mar 26, 2026 |
| 1327 | Moving Object Recognition | 57%(350/614) | Dec 9, 2025 |
| 1328 | Radar Installation | 22%(39962/174956) | Apr 13, 2026 |
| 1329 | Circle Through Three Points | 38%(1973/5063) | Apr 13, 2026 |
| 1330 | Nearest Common Ancestors | 47%(22884/48084) | Mar 28, 2026 |
| 1331 | Multiply | 51%(3320/6409) | Mar 26, 2026 |
| 1332 | Finding Liars | 42%(720/1708) | Dec 9, 2025 |
| 1333 | Christmas Gifts | 26%(66/249) | Apr 13, 2026 |
| 1334 | Two Mountaineers | 39%(184/471) | Dec 9, 2025 |
| 1335 | Digital Onion | 26%(145/544) | Mar 26, 2026 |
| 1336 | The K-League | 34%(322/921) | Mar 5, 2026 |
| 1337 | A Lazy Worker | 34%(474/1370) | Apr 5, 2026 |
| 1338 | Ugly Numbers | 41%(13613/32547) | Apr 8, 2026 |
| 1339 | poker card game | 34%(373/1074) | Nov 20, 2025 |
| 1340 | The Longest Detour Problem | 33%(231/698) | Dec 9, 2025 |
| 1341 | The Strongest Subchains | 22%(181/822) | Dec 9, 2025 |
| 1342 | Tag Trees | 26%(116/438) | Dec 9, 2025 |
| 1343 | Rooted Trees Isomorphism | 27%(180/656) | Nov 21, 2025 |
| 1344 | Tree Size Problem | 53%(282/526) | Dec 1, 2025 |
| 1345 | Address Recovery | 5%(9/175) | Apr 13, 2026 |
| 1346 | Board of Directors Meeting | 13%(19/140) | Dec 1, 2025 |
| 1347 | Triangle | 18%(79/420) | Mar 22, 2026 |
| 1348 | Computing | 16%(315/1946) | Mar 26, 2026 |
| 1349 | Coding of Permutations | 40%(445/1086) | Dec 9, 2025 |
| 1350 | Cabric Number Problem | 30%(3704/12179) | Oct 22, 2025 |
| 1351 | Number of Locks | 49%(865/1754) | Mar 26, 2026 |
| 1352 | Quantity of White Mice | 28%(169/587) | Mar 26, 2026 |
| 1353 | Color Change of Go Game Pieces | 60%(361/596) | Nov 20, 2025 |
| 1354 | Placement of Keys | 50%(938/1840) | Mar 20, 2026 |
| 1355 | Selecting the Optimal Teaching Fiends | 14%(170/1183) | Dec 9, 2025 |
| 1356 | Grandpa's Other Estate | 45%(282/623) | Mar 26, 2026 |
| 1357 | Afshung Pizza Delivery | 32%(62/192) | Mar 4, 2026 |
| 1358 | Housing Complexes | 36%(151/415) | Mar 26, 2026 |
| 1359 | Spacecraft Malfunction | 36%(194/535) | Mar 26, 2026 |
| 1360 | Blue x Red = Bang | 9%(29/317) | Mar 5, 2026 |
| 1361 | JaWs | 15%(31/205) | Dec 1, 2025 |
| 1362 | Skew Binary | 53%(409/758) | Mar 26, 2026 |
| 1363 | Rails | 37%(19930/53563) | Apr 13, 2026 |
| 1364 | King | 34%(5862/17206) | Mar 26, 2026 |
| 1365 | Prime Land | 43%(2546/5798) | Dec 21, 2025 |
| 1366 | Word | 26%(256/973) | Mar 26, 2026 |
| 1367 | Time | 27%(190/698) | Mar 4, 2026 |
| 1368 | Puzzle | 19%(157/795) | Dec 9, 2025 |
| 1369 | Append | 24%(135/553) | Mar 26, 2026 |
| 1370 | Gossiping | 34%(201/584) | Mar 26, 2026 |
| 1371 | Tin Cutter | 33%(290/870) | Dec 9, 2025 |
| 1372 | FORCAL | 23%(97/414) | Feb 2, 2026 |
| 1373 | L-system | 12%(153/1192) | Mar 26, 2026 |
| 1374 | Crosswords | 29%(177/594) | Dec 9, 2025 |
| 1375 | Intervals | 29%(1592/5322) | Oct 23, 2025 |
| 1376 | Robot | 32%(3528/10706) | Jan 6, 2026 |
| 1377 | Good Approximation Problem | 23%(251/1079) | Mar 26, 2026 |
| 1378 | Power Cable Problem | 44%(192/427) | Nov 21, 2025 |
| 1379 | Run Away | 29%(3540/12184) | Mar 26, 2026 |
| 1380 | Equipment Box | 26%(1195/4514) | Mar 26, 2026 |
| 1381 | Secret Code | 33%(308/919) | Mar 26, 2026 |
| 1382 | The Proper Key | 34%(235/675) | Mar 5, 2026 |
| 1383 | Labyrinth | 35%(2390/6719) | Mar 26, 2026 |
| 1384 | Piggy-Bank | 50%(10020/20035) | Apr 9, 2026 |
| 1385 | Lifting the Stone | 31%(1397/4492) | Mar 26, 2026 |
| 1386 | Play on Words | 32%(5924/18354) | Mar 26, 2026 |
| 1387 | The Constraint Densest Submatrix | 23%(276/1153) | Dec 9, 2025 |
| 1388 | Hinge Node Problem | 61%(347/565) | Nov 20, 2025 |
| 1389 | Area of Simple Polygons | 51%(2126/4127) | Mar 26, 2026 |
| 1390 | Blocks | 40%(3255/8003) | Apr 9, 2026 |
| 1391 | Erdos Numbers | 25%(458/1782) | Dec 9, 2025 |
| 1392 | Ouroboros Snake | 49%(820/1641) | Nov 19, 2025 |
| 1393 | Fold-up Patterns | 24%(39/158) | Dec 9, 2025 |
| 1394 | Railroad | 30%(414/1358) | Mar 22, 2026 |
| 1395 | Cog-Wheels | 12%(285/2355) | Dec 9, 2025 |
| 1396 | Simple Arithmetics | 23%(554/2387) | Mar 5, 2026 |
| 1397 | The Bulk | 38%(95/244) | Mar 4, 2026 |
| 1398 | Complete the sequence! | 48%(561/1156) | Oct 14, 2025 |
| 1399 | Direct Visibility | 41%(161/388) | Mar 21, 2026 |
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