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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 |
| 2500 | Pia's Party | 22%(517/2277) | Jan 8, 2026 |
| 2501 | Average Speed | 44%(2449/5459) | Jan 8, 2026 |
| 2502 | Subway | 31%(6434/20417) | Jan 8, 2026 |
| 2503 | Babelfish | 38%(30325/77786) | Jan 6, 2026 |
| 2504 | Bounding box | 39%(662/1683) | Dec 9, 2025 |
| 2505 | A multiplication game | 49%(4081/8207) | Nov 20, 2025 |
| 2506 | Tiling | 42%(7945/18602) | Dec 25, 2025 |
| 2507 | Crossed ladders | 37%(2185/5773) | Nov 20, 2025 |
| 2508 | Conic distance | 41%(1010/2452) | Nov 20, 2025 |
| 2509 | Peter's smokes | 41%(7718/18774) | Nov 20, 2025 |
| 2510 | Tullia and Chocolate II | 20%(381/1859) | Jan 7, 2026 |
| 2511 | The Top Shelf | 27%(421/1524) | Jan 9, 2026 |
| 2512 | Chessboard in FEN | 40%(380/941) | Dec 9, 2025 |
| 2513 | Colored Sticks | 25%(11679/45334) | Jan 7, 2026 |
| 2514 | Ridiculous Addition | 21%(429/2037) | Dec 9, 2025 |
| 2515 | Birthday Cake | 37%(433/1169) | Jan 9, 2026 |
| 2516 | Minimum Cost | 35%(7745/21941) | Jan 9, 2026 |
| 2517 | Cover | 12%(28/227) | Jan 8, 2026 |
| 2518 | Little guys' game | 29%(183/612) | Dec 1, 2025 |
| 2519 | Cutting Necklace | 12%(178/1390) | Jan 7, 2026 |
| 2520 | DNA Sequence Alignment | 11%(311/2773) | Dec 9, 2025 |
| 2521 | How much did the businessman lose | 62%(8482/13646) | Jan 7, 2026 |
| 2522 | Partitioning for fun and profit | 31%(314/999) | Jan 8, 2026 |
| 2523 | ASCII Labyrinth | 37%(164/434) | Dec 9, 2025 |
| 2524 | Ubiquitous Religions | 45%(26432/58088) | Jan 7, 2026 |
| 2525 | Text Formalization | 20%(253/1249) | Nov 25, 2025 |
| 2526 | Center of symmetry | 44%(1181/2637) | Nov 21, 2025 |
| 2527 | Polynomial Remains | 56%(835/1482) | Nov 25, 2025 |
| 2528 | Mayor's posters | 28%(30869/109343) | Jan 11, 2026 |
| 2529 | Queuing at the doctors | 33%(195/574) | Jan 7, 2026 |
| 2530 | Tetris Alphabet | 40%(571/1397) | Jan 8, 2026 |
| 2531 | Network Saboteur | 51%(10175/19941) | Jan 7, 2026 |
| 2532 | Burned Calendar | 26%(139/515) | Jan 7, 2026 |
| 2533 | Longest Ordered Subsequence | 44%(39476/88483) | Jan 7, 2026 |
| 2534 | Falling cards | 18%(73/405) | Dec 9, 2025 |
| 2535 | Very Simple Problem | 37%(1723/4631) | Jan 8, 2026 |
| 2536 | Gopher II | 39%(4414/11130) | Jan 7, 2026 |
| 2537 | Tight words | 46%(1343/2870) | Nov 25, 2025 |
| 2538 | WERTYU | 45%(5182/11331) | Nov 23, 2025 |
| 2539 | Division | 25%(667/2598) | Dec 9, 2025 |
| 2540 | Hotter Colder | 38%(1630/4191) | Jan 8, 2026 |
| 2541 | Binary Witch | 37%(633/1704) | Jan 7, 2026 |
| 2542 | Fool Game | 19%(78/398) | Jan 8, 2026 |
| 2543 | Spreadsheet | 23%(115/484) | Dec 9, 2025 |
| 2544 | PreQueL | 15%(51/339) | Jan 8, 2026 |
| 2545 | Hamming Problem | 46%(3168/6850) | Nov 21, 2025 |
| 2546 | Circular Area | 34%(2857/8321) | Jan 8, 2026 |
| 2547 | No Tipping | 36%(347/942) | Dec 1, 2025 |
| 2548 | Subway | 37%(176/467) | Jan 8, 2026 |
| 2549 | Sumsets | 27%(4322/15811) | Dec 9, 2025 |
| 2550 | Zipf's Law | 30%(591/1937) | Dec 9, 2025 |
| 2551 | Ones | 55%(7004/12547) | Nov 21, 2025 |
| 2552 | Assistance Required | 57%(1734/2991) | Jan 8, 2026 |
| 2553 | The Bottom of a Graph | 40%(5807/14328) | Nov 21, 2025 |
| 2554 | Fixed Partition Contest Management | 30%(129/420) | Dec 9, 2025 |
| 2555 | Drink, on Ice | 58%(889/1527) | Nov 25, 2025 |
| 2556 | Edge | 67%(941/1400) | Nov 25, 2025 |
| 2557 | Fold | 41%(162/395) | Dec 9, 2025 |
| 2558 | Genetic Code | 53%(697/1292) | Nov 20, 2025 |
| 2559 | Largest Rectangle in a Histogram | 32%(14457/44966) | Jan 8, 2026 |
| 2560 | Freckles | 45%(4687/10377) | Jan 7, 2026 |
| 2561 | Language Cardinality | 20%(267/1304) | Jan 8, 2026 |
| 2562 | Primary Arithmetic | 36%(4468/12305) | Jan 8, 2026 |
| 2563 | Demerit Points | 33%(178/536) | Dec 9, 2025 |
| 2564 | Edit Step Ladders | 35%(1041/2893) | Jan 8, 2026 |
| 2565 | Average is not Fast Enough! | 43%(1021/2366) | Nov 20, 2025 |
| 2566 | Bound Found | 31%(5008/16080) | Dec 22, 2025 |
| 2567 | Code the Tree | 38%(1198/3088) | Dec 9, 2025 |
| 2568 | Decode the Tree | 39%(783/1995) | Dec 31, 2025 |
| 2569 | Etaoin Shrdlu | 49%(706/1424) | Dec 9, 2025 |
| 2570 | Fiber Network | 43%(1883/4364) | Nov 21, 2025 |
| 2571 | Global Roaming | 49%(406/823) | Jan 7, 2026 |
| 2572 | Hard to Believe, but True! | 57%(2160/3767) | Nov 20, 2025 |
| 2573 | Bridge | 32%(1998/6153) | Dec 9, 2025 |
| 2574 | Saskatchewan | 24%(222/892) | Dec 9, 2025 |
| 2575 | Jolly Jumpers | 29%(5568/18587) | Jan 7, 2026 |
| 2576 | Tug of War | 28%(3238/11260) | Jan 8, 2026 |
| 2577 | Interpreter | 34%(771/2256) | Jan 8, 2026 |
| 2578 | Keep on Truckin' | 75%(6638/8778) | Nov 20, 2025 |
| 2579 | Blurred Vision | 70%(1665/2359) | Jan 9, 2026 |
| 2580 | The Door/Key Problem | 27%(202/722) | Jan 8, 2026 |
| 2581 | Exact Change Only | 34%(948/2751) | Nov 25, 2025 |
| 2582 | Finding Nemo | 42%(246/578) | Jan 9, 2026 |
| 2583 | Series Determination | 65%(4328/6599) | Jan 8, 2026 |
| 2584 | T-Shirt Gumbo | 47%(1998/4196) | Jan 8, 2026 |
| 2585 | Window Pains | 49%(1649/3364) | Jan 8, 2026 |
| 2586 | Y2K Accounting Bug | 50%(11319/22584) | Jan 8, 2026 |
| 2587 | Airline Hub | 32%(666/2040) | Jan 7, 2026 |
| 2588 | Snakes | 31%(487/1554) | Dec 9, 2025 |
| 2589 | Snap | 38%(253/664) | Dec 9, 2025 |
| 2590 | Steps | 45%(3859/8464) | Jan 8, 2026 |
| 2591 | Set Definition | 46%(4729/10125) | Jan 8, 2026 |
| 2592 | Standard Point System | 24%(206/840) | Dec 9, 2025 |
| 2593 | Max Sequence | 41%(8661/20987) | Dec 9, 2025 |
| 2594 | Treasure Exploration | 40%(5109/12631) | Jan 7, 2026 |
| 2595 | Min-Max | 22%(575/2577) | Dec 1, 2025 |
| 2596 | Dice Stacking | 24%(391/1597) | Dec 1, 2025 |
| 2597 | Line Segment Erase | 28%(443/1539) | Jan 8, 2026 |
| 2598 | Match Throwing Game | 29%(328/1094) | Dec 9, 2025 |
| 2599 | A funny game | 42%(1010/2399) | Jan 8, 2026 |
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