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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%(623/2042) | Oct 9, 2026 |
| 1401 | Factorial | 60%(11298/18815) | Oct 8, 2026 |
| 1402 | The Game of Master-Mind | 4%(119/2588) | Oct 16, 2026 |
| 1403 | Hotline | 21%(182/864) | Oct 16, 2026 |
| 1404 | I-Keyboard | 48%(2215/4581) | Oct 8, 2026 |
| 1405 | Heritage | 37%(3010/8030) | Oct 11, 2026 |
| 1406 | Starship Hakodate-maru | 60%(989/1647) | Oct 10, 2026 |
| 1407 | e-Market | 32%(162/496) | Oct 8, 2026 |
| 1408 | Fishnet | 58%(1749/2975) | Oct 14, 2026 |
| 1409 | 77377 | 36%(373/1012) | Oct 8, 2026 |
| 1410 | Intersection | 25%(5637/22545) | Oct 21, 2026 |
| 1411 | Calling Extraterrestrial Intelligence Again | 35%(5031/14172) | Oct 8, 2026 |
| 1412 | Equals are Equals | 18%(98/527) | Oct 20, 2026 |
| 1413 | GIGA Universe Cup | 23%(71/306) | Oct 16, 2026 |
| 1414 | Life Line | 66%(831/1255) | Oct 8, 2026 |
| 1415 | Map of Ninja House | 30%(208/687) | Oct 16, 2026 |
| 1416 | Shredding Company | 52%(4638/8836) | Oct 16, 2026 |
| 1417 | True Liars | 31%(3680/11810) | Oct 16, 2026 |
| 1418 | Viva Confetti | 39%(562/1406) | Oct 16, 2026 |
| 1419 | Graph Coloring | 45%(3445/7574) | Oct 11, 2026 |
| 1420 | Spreadsheet | 46%(487/1048) | Oct 8, 2026 |
| 1421 | Peter's Calculator | 21%(99/462) | Oct 16, 2026 |
| 1422 | Air Raid | 59%(6803/11517) | Oct 8, 2026 |
| 1423 | Big Number | 30%(9787/31970) | Oct 14, 2026 |
| 1424 | Diamonds | 22%(92/404) | Oct 20, 2026 |
| 1425 | Enigmatic Travel | 51%(154/299) | Oct 16, 2026 |
| 1426 | Find The Multiple | 37%(31693/83580) | Oct 20, 2026 |
| 1427 | Get Them All | 31%(66/209) | Oct 16, 2026 |
| 1428 | Hermes' Colony | 14%(51/352) | Oct 16, 2026 |
| 1429 | Alice and Bob | 24%(306/1245) | Oct 11, 2026 |
| 1430 | Binary Stirling Numbers | 40%(929/2277) | Oct 8, 2026 |
| 1431 | Calendar of Maya | 37%(114/306) | Oct 16, 2026 |
| 1432 | Decoding Morse Sequences | 39%(754/1896) | Oct 8, 2026 |
| 1433 | Exchanges | 47%(262/549) | Oct 8, 2026 |
| 1434 | Fill the Cisterns! | 32%(1488/4547) | Oct 13, 2026 |
| 1435 | Gates | 41%(149/361) | Oct 16, 2026 |
| 1436 | Horizontally Visible Segments | 35%(2474/6903) | Oct 20, 2026 |
| 1437 | Chat Rooms | 16%(115/715) | Oct 16, 2026 |
| 1438 | One-way Traffic | 31%(392/1250) | Oct 16, 2026 |
| 1439 | Rhombs | 39%(85/216) | Oct 16, 2026 |
| 1440 | Varacious Steve | 49%(250/510) | Oct 8, 2026 |
| 1441 | Table | 20%(92/444) | Oct 16, 2026 |
| 1442 | Black Box | 39%(8810/22156) | Oct 8, 2026 |
| 1443 | DEL command | 24%(86/350) | Oct 16, 2026 |
| 1444 | Parallelepiped walk | 23%(219/913) | Oct 16, 2026 |
| 1445 | Random number | 19%(51/257) | Oct 16, 2026 |
| 1446 | Moscow Time | 23%(162/688) | Oct 16, 2026 |
| 1447 | Ambiguous Dates | 27%(70/258) | Oct 16, 2026 |
| 1448 | Cube | 31%(124/399) | Oct 16, 2026 |
| 1449 | Enigma | 39%(94/238) | Oct 16, 2026 |
| 1450 | Gridland | 47%(5021/10584) | Oct 8, 2026 |
| 1451 | T9 | 33%(1851/5466) | Oct 8, 2026 |
| 1452 | Signal Box | 20%(33/158) | Oct 16, 2026 |
| 1453 | Delta Encoding and Decoding | 28%(233/809) | Oct 8, 2026 |
| 1454 | Factorial Frequencies | 42%(1270/2988) | Oct 13, 2026 |
| 1455 | Crazy tea party | 67%(5369/7952) | Oct 8, 2026 |
| 1456 | Supermarket | 42%(14217/33618) | Oct 8, 2026 |
| 1457 | Lord of the Ring | 29%(212/721) | Oct 8, 2026 |
| 1458 | Common Subsequence | 42%(39130/91266) | Oct 13, 2026 |
| 1459 | Power Network | 50%(17754/34982) | Oct 8, 2026 |
| 1460 | Firefighters | 31%(366/1162) | Oct 8, 2026 |
| 1461 | Binary Polynomials | 38%(207/543) | Oct 16, 2026 |
| 1462 | Random Walk | 21%(199/932) | Oct 16, 2026 |
| 1463 | Strategic game | 42%(7086/16750) | Oct 18, 2026 |
| 1464 | Company | 11%(55/494) | Oct 16, 2026 |
| 1465 | Multiple | 22%(2080/9433) | Oct 8, 2026 |
| 1466 | Girls and Boys | 44%(7228/16092) | Oct 21, 2026 |
| 1467 | Symbolic Derivation | 40%(78/194) | Oct 16, 2026 |
| 1468 | Rectangles | 51%(1871/3653) | Oct 8, 2026 |
| 1469 | COURSES | 38%(12649/33216) | Oct 17, 2026 |
| 1470 | Closest Common Ancestors | 29%(8706/29090) | Oct 10, 2026 |
| 1471 | Triangles | 36%(848/2330) | Oct 8, 2026 |
| 1472 | Instant Complexity | 32%(1028/3156) | Oct 8, 2026 |
| 1473 | There's Treasure Everywhere! | 43%(982/2269) | Oct 8, 2026 |
| 1474 | Video Surveillance | 42%(2532/5904) | Oct 8, 2026 |
| 1475 | Pushing Boxes | 33%(4033/11917) | Oct 19, 2026 |
| 1476 | Always On the Run | 52%(426/819) | Oct 8, 2026 |
| 1477 | Box of Bricks | 37%(10242/27581) | Oct 8, 2026 |
| 1478 | Island of Logic | 33%(232/686) | Oct 8, 2026 |
| 1479 | MBone | 27%(43/157) | Oct 16, 2026 |
| 1480 | Optimal Programs | 34%(553/1582) | Oct 8, 2026 |
| 1481 | The Die Is Cast | 37%(701/1866) | Oct 8, 2026 |
| 1482 | It's not a Bug, It's a Feature! | 39%(672/1699) | Oct 8, 2026 |
| 1483 | Going in Circles on Alpha Centauri | 23%(51/215) | Oct 16, 2026 |
| 1484 | Blowing Fuses | 38%(1765/4611) | Oct 8, 2026 |
| 1485 | Fast Food | 38%(1531/3985) | Oct 8, 2026 |
| 1486 | Sorting Slides | 37%(2486/6602) | Oct 21, 2026 |
| 1487 | Single-Player Games | 27%(526/1942) | Oct 8, 2026 |
| 1488 | TEX Quotes | 50%(6764/13288) | Oct 8, 2026 |
| 1489 | Egyptian Multiplication | 29%(394/1329) | Oct 8, 2026 |
| 1490 | Cabinets | 19%(77/387) | Oct 16, 2026 |
| 1491 | Pi | 54%(2896/5299) | Oct 8, 2026 |
| 1492 | Up and Down Sequences | 56%(452/806) | Oct 8, 2026 |
| 1493 | Machined Surfaces | 59%(2579/4325) | Oct 8, 2026 |
| 1494 | Sunrise | 36%(174/476) | Oct 16, 2026 |
| 1495 | LED Test | 34%(189/546) | Oct 8, 2026 |
| 1496 | Word Index | 55%(3271/5941) | Oct 8, 2026 |
| 1497 | Molecules | 44%(135/302) | Oct 16, 2026 |
| 1498 | Matching Meetings | 20%(60/290) | Oct 16, 2026 |
| 1499 | Supercomputer Selection, The Sequel | 27%(50/182) | Oct 16, 2026 |
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