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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 |
| 1500 | Polygonal Puzzle | 16%(38/230) | Jun 3, 2026 |
| 1501 | Word-Search Wonder | 38%(676/1735) | Mar 27, 2026 |
| 1502 | MPI Maelstrom | 57%(12479/21707) | May 29, 2026 |
| 1503 | Integer Inquiry | 38%(15579/40619) | May 30, 2026 |
| 1504 | Adding Reversed Numbers | 52%(11791/22424) | May 21, 2026 |
| 1505 | Copying Books | 30%(4351/14322) | May 9, 2026 |
| 1506 | Substitution Cipher | 16%(215/1338) | Mar 27, 2026 |
| 1507 | Commedia dell' arte | 38%(196/506) | Mar 27, 2026 |
| 1508 | Skyscraper Floors | 17%(189/1065) | Mar 5, 2026 |
| 1509 | Glass Beads | 54%(3758/6919) | Apr 9, 2026 |
| 1510 | Hares and Foxes | 26%(56/215) | Mar 5, 2026 |
| 1511 | Invitation Cards | 30%(14986/48543) | May 5, 2026 |
| 1512 | Keeps Going and Going and ... | 27%(61/221) | Mar 5, 2026 |
| 1513 | Scheduling Lectures | 42%(586/1373) | Dec 9, 2025 |
| 1514 | Metal Cutting | 33%(250/748) | Dec 9, 2025 |
| 1515 | Street Directions | 47%(872/1850) | May 12, 2026 |
| 1516 | Parallel Deadlock | 32%(48/147) | Dec 9, 2025 |
| 1517 | u Calculate e | 57%(12146/21006) | May 30, 2026 |
| 1518 | Problem Bee | 44%(205/462) | Oct 14, 2025 |
| 1519 | Digital Roots | 32%(10081/31153) | Jun 1, 2026 |
| 1520 | Scramble Sort | 45%(1371/2983) | Mar 28, 2026 |
| 1521 | Entropy | 31%(7432/23590) | Jun 3, 2026 |
| 1522 | N-Credible Mazes | 50%(340/668) | Nov 20, 2025 |
| 1523 | SPF | 42%(6113/14290) | Jun 3, 2026 |
| 1524 | Cowculations | 52%(209/400) | Mar 27, 2026 |
| 1525 | Hi-Q | 59%(165/277) | Mar 27, 2026 |
| 1526 | Call Forwarding | 32%(154/470) | Mar 27, 2026 |
| 1527 | Making the Grade | 54%(137/252) | Mar 27, 2026 |
| 1528 | Perfection | 45%(6520/14390) | Apr 29, 2026 |
| 1529 | Shipping Routes | 47%(306/643) | Apr 5, 2026 |
| 1530 | Slurpys | 51%(260/509) | Mar 27, 2026 |
| 1531 | Trooper of Bam | 0%(7/913) | Jun 3, 2026 |
| 1532 | Mixed Numbers | 14%(135/928) | Mar 4, 2026 |
| 1533 | Mystery | 12%(67/536) | Mar 27, 2026 |
| 1534 | Terrorist Attack | 17%(41/229) | Mar 5, 2026 |
| 1535 | Forgetful | 20%(185/904) | Mar 27, 2026 |
| 1536 | Trains | 14%(40/285) | May 9, 2026 |
| 1537 | Identifying Legal Pascal Real Constants | 34%(282/818) | Mar 27, 2026 |
| 1538 | Extrapolation Using a Difference Table | 54%(175/324) | Mar 10, 2026 |
| 1539 | Evaluating Simple C Expressions | 42%(320/752) | Mar 27, 2026 |
| 1540 | The Finite State Text-Processing | 12%(34/282) | Jun 3, 2026 |
| 1541 | Dart-a-Mania | 34%(97/283) | Mar 27, 2026 |
| 1542 | DNA Translation | 18%(76/414) | Dec 9, 2025 |
| 1543 | Perfect Cubes | 47%(9577/20334) | Apr 30, 2026 |
| 1544 | A Puzzling Problem | 32%(143/435) | Nov 20, 2025 |
| 1545 | Galactic Import | 40%(205/505) | Mar 27, 2026 |
| 1546 | Basically Speaking | 43%(2328/5319) | Apr 30, 2026 |
| 1547 | Clay Bully | 54%(5514/10041) | Apr 5, 2026 |
| 1548 | Robots | 46%(2331/5064) | Dec 25, 2025 |
| 1549 | Bright Bracelet | 24%(195/812) | Dec 9, 2025 |
| 1550 | Treadmill | 52%(190/364) | Mar 27, 2026 |
| 1551 | Data Mining? | 36%(176/483) | Dec 9, 2025 |
| 1552 | Doubles | 55%(15112/27298) | Jun 4, 2026 |
| 1553 | Fax Regions | 22%(59/262) | Dec 1, 2025 |
| 1554 | Tournament Brackets | 37%(94/253) | Dec 1, 2025 |
| 1555 | Polynomial Showdown | 32%(2345/7254) | May 9, 2026 |
| 1556 | The Doors | 35%(5024/14262) | May 31, 2026 |
| 1557 | Mapmaker | 59%(174/294) | Mar 27, 2026 |
| 1558 | Board Silly | 49%(174/352) | Mar 20, 2026 |
| 1559 | Equation Elation | 41%(150/361) | Mar 5, 2026 |
| 1560 | 18 Wheeler Caravans (aka Semigroups) | 34%(49/143) | Mar 4, 2026 |
| 1561 | Another Puzzling Problem | 21%(148/680) | Mar 5, 2026 |
| 1562 | Oil Deposits | 50%(15469/30749) | Apr 1, 2026 |
| 1563 | The Snail | 42%(1124/2633) | May 6, 2026 |
| 1564 | Sum It Up | 50%(5360/10685) | Mar 27, 2026 |
| 1565 | Skew Binary | 63%(7399/11644) | Mar 27, 2026 |
| 1566 | Haiku Review | 60%(565/928) | Mar 27, 2026 |
| 1567 | WIMP | 36%(47/129) | Mar 20, 2026 |
| 1568 | Find the Winning Move | 46%(995/2141) | Mar 5, 2026 |
| 1569 | Myacm Triangles | 53%(782/1452) | Nov 20, 2025 |
| 1570 | Exchange Rates | 45%(203/443) | Mar 20, 2026 |
| 1571 | Loansome Car Buyer | 41%(157/379) | Mar 27, 2026 |
| 1572 | Automatic Editing | 44%(734/1636) | Mar 27, 2026 |
| 1573 | Robot Motion | 46%(8641/18621) | Nov 20, 2025 |
| 1574 | The Triangle Game | 51%(368/718) | Dec 9, 2025 |
| 1575 | Easier Done Than Said? | 52%(3052/5806) | Jan 7, 2026 |
| 1576 | Colorville | 38%(216/555) | Apr 16, 2026 |
| 1577 | Falling Leaves | 52%(4181/8029) | May 1, 2026 |
| 1578 | Instruens Fabulam | 45%(373/827) | Mar 11, 2026 |
| 1579 | Function Run Fun | 45%(13352/29051) | Apr 22, 2026 |
| 1580 | String Matching | 47%(2669/5650) | Nov 20, 2025 |
| 1581 | A Contesting Decision | 57%(3471/6089) | May 18, 2026 |
| 1582 | Which Way Do I Go? | 13%(77/555) | Mar 5, 2026 |
| 1583 | Choose Your Words Carefully | 30%(603/1974) | Mar 27, 2026 |
| 1584 | A Round Peg in a Ground Hole | 31%(3058/9800) | May 10, 2026 |
| 1585 | Helping Florida | 22%(108/487) | Mar 27, 2026 |
| 1586 | Three Sides Make a Triangle | 15%(679/4263) | Mar 27, 2026 |
| 1587 | High and Dry | 16%(33/200) | Jun 3, 2026 |
| 1588 | Reverse Roman Notation | 37%(296/780) | Mar 20, 2026 |
| 1589 | Unix ls | 33%(1074/3244) | Apr 5, 2026 |
| 1590 | Palindromes | 33%(1599/4811) | May 7, 2026 |
| 1591 | M*A*S*H | 49%(728/1468) | Mar 27, 2026 |
| 1592 | Postscript | 23%(90/376) | Dec 9, 2025 |
| 1593 | Radar Scopes | 19%(55/280) | Dec 9, 2025 |
| 1594 | Message Routing | 37%(58/156) | Mar 27, 2026 |
| 1595 | Prime Cuts | 37%(4921/13073) | May 9, 2026 |
| 1596 | Gears on a Board | 24%(43/174) | Dec 9, 2025 |
| 1597 | Uniform Generator | 42%(3153/7406) | May 25, 2026 |
| 1598 | Excuses, Excuses! | 33%(1688/4990) | May 3, 2026 |
| 1599 | Station Balance | 34%(234/669) | Feb 4, 2026 |
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