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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 |
| 1400 | Complicated Expressions | 30%(618/2035) | Oct 14, 2025 |
| 1401 | Factorial | 60%(11265/18775) | Dec 2, 2025 |
| 1402 | The Game of Master-Mind | 4%(111/2566) | Nov 29, 2025 |
| 1403 | Hotline | 21%(178/839) | Oct 14, 2025 |
| 1404 | I-Keyboard | 48%(2204/4562) | Oct 14, 2025 |
| 1405 | Heritage | 37%(2996/8008) | Jan 9, 2026 |
| 1406 | Starship Hakodate-maru | 60%(978/1630) | Oct 14, 2025 |
| 1407 | e-Market | 32%(157/490) | Nov 21, 2025 |
| 1408 | Fishnet | 58%(1735/2960) | Dec 21, 2025 |
| 1409 | 77377 | 36%(360/994) | Jan 7, 2026 |
| 1410 | Intersection | 24%(5608/22470) | Nov 20, 2025 |
| 1411 | Calling Extraterrestrial Intelligence Again | 35%(5022/14158) | Nov 21, 2025 |
| 1412 | Equals are Equals | 18%(92/508) | Dec 9, 2025 |
| 1413 | GIGA Universe Cup | 22%(66/292) | Dec 9, 2025 |
| 1414 | Life Line | 66%(820/1228) | Dec 9, 2025 |
| 1415 | Map of Ninja House | 29%(200/675) | Dec 9, 2025 |
| 1416 | Shredding Company | 52%(4623/8812) | Dec 24, 2025 |
| 1417 | True Liars | 31%(3662/11781) | Jan 8, 2026 |
| 1418 | Viva Confetti | 40%(555/1385) | Dec 9, 2025 |
| 1419 | Graph Coloring | 45%(3427/7501) | Jan 4, 2026 |
| 1420 | Spreadsheet | 46%(477/1036) | Jan 7, 2026 |
| 1421 | Peter's Calculator | 20%(93/452) | Dec 9, 2025 |
| 1422 | Air Raid | 58%(6705/11401) | Jan 4, 2026 |
| 1423 | Big Number | 30%(9771/31944) | Jan 9, 2026 |
| 1424 | Diamonds | 21%(86/393) | Dec 9, 2025 |
| 1425 | Enigmatic Travel | 49%(142/286) | Jan 7, 2026 |
| 1426 | Find The Multiple | 37%(31573/83226) | Jan 4, 2026 |
| 1427 | Get Them All | 30%(60/198) | Dec 29, 2025 |
| 1428 | Hermes' Colony | 12%(42/332) | Dec 9, 2025 |
| 1429 | Alice and Bob | 24%(295/1224) | Jan 8, 2026 |
| 1430 | Binary Stirling Numbers | 40%(908/2250) | Jan 7, 2026 |
| 1431 | Calendar of Maya | 35%(103/291) | Jan 8, 2026 |
| 1432 | Decoding Morse Sequences | 39%(746/1884) | Dec 9, 2025 |
| 1433 | Exchanges | 47%(254/531) | Jan 8, 2026 |
| 1434 | Fill the Cisterns! | 32%(1483/4528) | Nov 21, 2025 |
| 1435 | Gates | 44%(149/336) | Dec 1, 2025 |
| 1436 | Horizontally Visible Segments | 35%(2462/6874) | Dec 9, 2025 |
| 1437 | Chat Rooms | 15%(105/692) | Dec 9, 2025 |
| 1438 | One-way Traffic | 32%(392/1216) | Dec 1, 2025 |
| 1439 | Rhombs | 38%(79/206) | Dec 1, 2025 |
| 1440 | Varacious Steve | 47%(232/484) | Jan 8, 2026 |
| 1441 | Table | 19%(85/432) | Dec 1, 2025 |
| 1442 | Black Box | 39%(8774/22095) | Jan 8, 2026 |
| 1443 | DEL command | 23%(78/334) | Dec 9, 2025 |
| 1444 | Parallelepiped walk | 23%(214/906) | Dec 1, 2025 |
| 1445 | Random number | 17%(42/240) | Dec 9, 2025 |
| 1446 | Moscow Time | 22%(154/678) | Dec 9, 2025 |
| 1447 | Ambiguous Dates | 25%(64/248) | Dec 1, 2025 |
| 1448 | Cube | 30%(120/391) | Dec 9, 2025 |
| 1449 | Enigma | 38%(87/226) | Dec 1, 2025 |
| 1450 | Gridland | 47%(5013/10575) | Jan 4, 2026 |
| 1451 | T9 | 33%(1847/5462) | Dec 9, 2025 |
| 1452 | Signal Box | 18%(28/153) | Dec 9, 2025 |
| 1453 | Delta Encoding and Decoding | 28%(229/804) | Dec 1, 2025 |
| 1454 | Factorial Frequencies | 42%(1265/2973) | Jan 8, 2026 |
| 1455 | Crazy tea party | 67%(5358/7938) | Nov 20, 2025 |
| 1456 | Supermarket | 42%(14132/33399) | Dec 30, 2025 |
| 1457 | Lord of the Ring | 28%(203/704) | Dec 9, 2025 |
| 1458 | Common Subsequence | 42%(38641/90637) | Jan 10, 2026 |
| 1459 | Power Network | 50%(17672/34709) | Jan 5, 2026 |
| 1460 | Firefighters | 31%(362/1154) | Jan 8, 2026 |
| 1461 | Binary Polynomials | 37%(200/536) | Jan 7, 2026 |
| 1462 | Random Walk | 20%(191/919) | Jan 8, 2026 |
| 1463 | Strategic game | 42%(7018/16613) | Dec 14, 2025 |
| 1464 | Company | 10%(49/472) | Dec 1, 2025 |
| 1465 | Multiple | 21%(2066/9413) | Nov 21, 2025 |
| 1466 | Girls and Boys | 45%(7131/15731) | Dec 25, 2025 |
| 1467 | Symbolic Derivation | 41%(74/178) | Dec 1, 2025 |
| 1468 | Rectangles | 51%(1853/3633) | Jan 8, 2026 |
| 1469 | COURSES | 37%(12428/32965) | Jan 4, 2026 |
| 1470 | Closest Common Ancestors | 29%(8692/29038) | Dec 9, 2025 |
| 1471 | Triangles | 36%(844/2321) | Dec 9, 2025 |
| 1472 | Instant Complexity | 32%(1024/3141) | Dec 25, 2025 |
| 1473 | There's Treasure Everywhere! | 43%(976/2263) | Nov 21, 2025 |
| 1474 | Video Surveillance | 42%(2510/5849) | Dec 5, 2025 |
| 1475 | Pushing Boxes | 33%(3971/11767) | Dec 30, 2025 |
| 1476 | Always On the Run | 51%(414/802) | Jan 8, 2026 |
| 1477 | Box of Bricks | 37%(10198/27460) | Jan 8, 2026 |
| 1478 | Island of Logic | 33%(228/679) | Dec 9, 2025 |
| 1479 | MBone | 25%(38/152) | Dec 9, 2025 |
| 1480 | Optimal Programs | 34%(546/1575) | Dec 9, 2025 |
| 1481 | The Die Is Cast | 37%(697/1861) | Dec 9, 2025 |
| 1482 | It's not a Bug, It's a Feature! | 39%(665/1692) | Jan 8, 2026 |
| 1483 | Going in Circles on Alpha Centauri | 21%(46/210) | Dec 9, 2025 |
| 1484 | Blowing Fuses | 38%(1753/4598) | Jan 8, 2026 |
| 1485 | Fast Food | 38%(1531/3952) | Jan 8, 2026 |
| 1486 | Sorting Slides | 37%(2434/6490) | Nov 20, 2025 |
| 1487 | Single-Player Games | 26%(518/1932) | Dec 23, 2025 |
| 1488 | TEX Quotes | 50%(6749/13269) | Dec 9, 2025 |
| 1489 | Egyptian Multiplication | 29%(388/1318) | Jan 8, 2026 |
| 1490 | Cabinets | 19%(70/362) | Dec 9, 2025 |
| 1491 | Pi | 54%(2881/5283) | Jan 7, 2026 |
| 1492 | Up and Down Sequences | 55%(448/802) | Dec 9, 2025 |
| 1493 | Machined Surfaces | 59%(2569/4312) | Nov 21, 2025 |
| 1494 | Sunrise | 36%(171/469) | Nov 21, 2025 |
| 1495 | LED Test | 34%(185/542) | Dec 9, 2025 |
| 1496 | Word Index | 54%(3257/5926) | Jan 9, 2026 |
| 1497 | Molecules | 43%(123/284) | Dec 9, 2025 |
| 1498 | Matching Meetings | 18%(53/282) | Dec 9, 2025 |
| 1499 | Supercomputer Selection, The Sequel | 26%(46/173) | Dec 9, 2025 |
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