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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%(1784/4163) | Jul 27, 2025 |
| 1301 | The Umbrella Problem: 2054 | 34%(147/429) | Nov 11, 2024 |
| 1302 | Blue Gene, Jr. | 59%(436/736) | Dec 25, 2024 |
| 1303 | Byte Me! | 35%(125/349) | Jul 20, 2024 |
| 1304 | World's Worst Bus Schedule | 33%(310/916) | Jul 26, 2024 |
| 1305 | Fermat vs. Pythagoras | 56%(1128/1999) | Nov 10, 2024 |
| 1306 | Combinations | 44%(5792/12875) | Jul 24, 2025 |
| 1307 | Mapping the Route | 35%(243/680) | Feb 5, 2025 |
| 1308 | Is It A Tree? | 31%(17435/55834) | Aug 20, 2025 |
| 1309 | Coconuts, Revisited | 40%(924/2262) | Dec 1, 2024 |
| 1310 | Nonstop Travel | 32%(193/592) | Sep 10, 2024 |
| 1311 | Doing Windows | 27%(131/471) | Oct 26, 2024 |
| 1312 | Numerically Speaking | 51%(726/1397) | Jun 23, 2025 |
| 1313 | Booklet Printing | 50%(1239/2453) | Sep 24, 2024 |
| 1314 | Finding Rectangles | 37%(735/1980) | May 19, 2025 |
| 1315 | Don't Get Rooked | 62%(1990/3168) | May 12, 2025 |
| 1316 | Self Numbers | 55%(14912/26992) | Mar 8, 2025 |
| 1317 | Do the Untwist | 59%(2266/3785) | Jul 30, 2025 |
| 1318 | Word Amalgamation | 47%(5357/11339) | Apr 20, 2025 |
| 1319 | Pipe Fitters | 45%(861/1900) | Nov 10, 2024 |
| 1320 | Street Numbers | 54%(1863/3409) | Sep 20, 2024 |
| 1321 | 棋盘问题 | 44%(60253/134886) | Aug 24, 2025 |
| 1322 | Chocolate | 26%(3510/13428) | Jul 26, 2025 |
| 1323 | Game Prediction | 47%(6215/13004) | Jul 30, 2025 |
| 1324 | Holedox Moving | 24%(5526/22351) | Aug 3, 2025 |
| 1325 | Machine Schedule | 40%(8943/21946) | Aug 19, 2025 |
| 1326 | Mileage Bank | 41%(6350/15226) | Apr 30, 2025 |
| 1327 | Moving Object Recognition | 56%(347/609) | Aug 11, 2024 |
| 1328 | Radar Installation | 22%(39802/174423) | Aug 20, 2025 |
| 1329 | Circle Through Three Points | 38%(1959/5047) | Aug 12, 2025 |
| 1330 | Nearest Common Ancestors | 47%(22831/47933) | Aug 16, 2025 |
| 1331 | Multiply | 51%(3313/6395) | Jul 30, 2025 |
| 1332 | Finding Liars | 42%(719/1704) | Aug 2, 2024 |
| 1333 | Christmas Gifts | 26%(64/238) | May 19, 2025 |
| 1334 | Two Mountaineers | 39%(184/468) | Jul 29, 2024 |
| 1335 | Digital Onion | 26%(143/530) | Jul 16, 2024 |
| 1336 | The K-League | 35%(321/905) | Jan 12, 2025 |
| 1337 | A Lazy Worker | 34%(469/1360) | Jul 30, 2025 |
| 1338 | Ugly Numbers | 41%(13563/32381) | Aug 16, 2025 |
| 1339 | poker card game | 34%(372/1072) | Aug 17, 2024 |
| 1340 | The Longest Detour Problem | 33%(231/695) | Jan 25, 2022 |
| 1341 | The Strongest Subchains | 22%(180/817) | Oct 23, 2024 |
| 1342 | Tag Trees | 26%(116/430) | Feb 7, 2023 |
| 1343 | Rooted Trees Isomorphism | 26%(176/652) | Oct 5, 2023 |
| 1344 | Tree Size Problem | 54%(282/522) | May 29, 2022 |
| 1345 | Address Recovery | 5%(8/156) | May 12, 2025 |
| 1346 | Board of Directors Meeting | 14%(19/134) | Aug 13, 2022 |
| 1347 | Triangle | 18%(76/410) | May 13, 2025 |
| 1348 | Computing | 15%(306/1932) | Dec 27, 2024 |
| 1349 | Coding of Permutations | 41%(445/1083) | Sep 16, 2024 |
| 1350 | Cabric Number Problem | 30%(3702/12172) | May 23, 2025 |
| 1351 | Number of Locks | 49%(855/1742) | Jul 30, 2025 |
| 1352 | Quantity of White Mice | 28%(166/579) | Sep 19, 2024 |
| 1353 | Color Change of Go Game Pieces | 60%(357/591) | Jul 30, 2025 |
| 1354 | Placement of Keys | 51%(935/1832) | May 8, 2025 |
| 1355 | Selecting the Optimal Teaching Fiends | 14%(170/1179) | Jul 22, 2024 |
| 1356 | Grandpa's Other Estate | 44%(273/609) | Jul 31, 2024 |
| 1357 | Afshung Pizza Delivery | 32%(61/188) | Jul 29, 2024 |
| 1358 | Housing Complexes | 36%(146/404) | Sep 23, 2024 |
| 1359 | Spacecraft Malfunction | 35%(183/518) | Aug 1, 2024 |
| 1360 | Blue x Red = Bang | 9%(29/307) | May 13, 2025 |
| 1361 | JaWs | 15%(31/202) | May 19, 2025 |
| 1362 | Skew Binary | 54%(404/740) | Jul 30, 2025 |
| 1363 | Rails | 37%(19735/52744) | Aug 12, 2025 |
| 1364 | King | 34%(5854/17183) | Jun 2, 2025 |
| 1365 | Prime Land | 43%(2540/5780) | Jul 30, 2025 |
| 1366 | Word | 26%(250/953) | Aug 12, 2024 |
| 1367 | Time | 27%(188/694) | Oct 28, 2024 |
| 1368 | Puzzle | 19%(157/791) | Aug 16, 2024 |
| 1369 | Append | 24%(129/536) | Jul 26, 2024 |
| 1370 | Gossiping | 34%(199/572) | Feb 1, 2022 |
| 1371 | Tin Cutter | 33%(289/864) | Feb 2, 2022 |
| 1372 | FORCAL | 23%(97/410) | Mar 4, 2023 |
| 1373 | L-system | 12%(150/1172) | Sep 20, 2024 |
| 1374 | Crosswords | 29%(177/592) | Dec 4, 2024 |
| 1375 | Intervals | 29%(1589/5313) | May 3, 2025 |
| 1376 | Robot | 32%(3526/10703) | May 19, 2025 |
| 1377 | Good Approximation Problem | 22%(238/1065) | Aug 1, 2024 |
| 1378 | Power Cable Problem | 44%(190/425) | Dec 25, 2024 |
| 1379 | Run Away | 29%(3537/12169) | Jun 25, 2025 |
| 1380 | Equipment Box | 26%(1191/4498) | Jul 30, 2025 |
| 1381 | Secret Code | 32%(298/904) | Aug 18, 2024 |
| 1382 | The Proper Key | 35%(235/670) | May 24, 2025 |
| 1383 | Labyrinth | 35%(2383/6701) | Aug 16, 2025 |
| 1384 | Piggy-Bank | 49%(9972/19962) | Jul 24, 2025 |
| 1385 | Lifting the Stone | 31%(1388/4469) | Jul 28, 2025 |
| 1386 | Play on Words | 32%(5912/18319) | Aug 17, 2025 |
| 1387 | The Constraint Densest Submatrix | 23%(273/1150) | Dec 8, 2022 |
| 1388 | Hinge Node Problem | 61%(345/563) | Sep 23, 2024 |
| 1389 | Area of Simple Polygons | 51%(2120/4113) | May 5, 2025 |
| 1390 | Blocks | 40%(3252/7993) | Aug 20, 2025 |
| 1391 | Erdos Numbers | 25%(456/1779) | May 4, 2025 |
| 1392 | Ouroboros Snake | 50%(814/1615) | Aug 19, 2025 |
| 1393 | Fold-up Patterns | 25%(39/156) | Apr 27, 2025 |
| 1394 | Railroad | 30%(413/1351) | Jul 27, 2024 |
| 1395 | Cog-Wheels | 12%(283/2350) | Apr 29, 2025 |
| 1396 | Simple Arithmetics | 23%(552/2378) | May 15, 2025 |
| 1397 | The Bulk | 39%(95/239) | Oct 28, 2024 |
| 1398 | Complete the sequence! | 48%(561/1155) | Jul 30, 2025 |
| 1399 | Direct Visibility | 41%(159/383) | Oct 17, 2024 |
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