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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 |
| 2517 | Cover | 12%(28/231) | Mar 6, 2026 |
| 2544 | PreQueL | 14%(51/344) | Mar 6, 2026 |
| 2534 | Falling cards | 18%(74/406) | Jun 24, 2026 |
| 2542 | Fool Game | 19%(78/401) | Mar 6, 2026 |
| 2543 | Spreadsheet | 23%(115/484) | Dec 9, 2025 |
| 2554 | Fixed Partition Contest Management | 30%(129/420) | Dec 9, 2025 |
| 2532 | Burned Calendar | 26%(139/518) | Mar 22, 2026 |
| 2557 | Fold | 40%(162/397) | Mar 25, 2026 |
| 2523 | ASCII Labyrinth | 37%(164/434) | Dec 9, 2025 |
| 2563 | Demerit Points | 33%(178/536) | Dec 9, 2025 |
| 2519 | Cutting Necklace | 12%(179/1396) | Apr 3, 2026 |
| 2548 | Subway | 38%(182/475) | Apr 3, 2026 |
| 2518 | Little guys' game | 29%(183/616) | Jun 15, 2026 |
| 2529 | Queuing at the doctors | 34%(201/585) | Apr 3, 2026 |
| 2580 | The Door/Key Problem | 27%(202/725) | Mar 6, 2026 |
| 2592 | Standard Point System | 24%(206/840) | Dec 9, 2025 |
| 2574 | Saskatchewan | 24%(222/895) | Mar 22, 2026 |
| 2582 | Finding Nemo | 42%(251/587) | Sep 5, 2026 |
| 2525 | Text Formalization | 20%(254/1251) | Sep 6, 2026 |
| 2589 | Snap | 38%(254/666) | Sep 5, 2026 |
| 2561 | Language Cardinality | 20%(267/1313) | Apr 3, 2026 |
| 2520 | DNA Sequence Alignment | 11%(312/2790) | May 7, 2026 |
| 2522 | Partitioning for fun and profit | 31%(317/1006) | Aug 29, 2026 |
| 2598 | Match Throwing Game | 30%(329/1095) | Aug 29, 2026 |
| 2547 | No Tipping | 36%(347/942) | Dec 1, 2025 |
| 2512 | Chessboard in FEN | 40%(380/941) | Dec 9, 2025 |
| 2510 | Tullia and Chocolate II | 20%(381/1859) | Jan 7, 2026 |
| 2596 | Dice Stacking | 24%(393/1600) | Aug 26, 2026 |
| 2571 | Global Roaming | 49%(414/834) | Aug 15, 2026 |
| 2511 | The Top Shelf | 27%(422/1525) | May 6, 2026 |
| 2514 | Ridiculous Addition | 21%(431/2044) | Aug 27, 2026 |
| 2515 | Birthday Cake | 37%(435/1175) | Aug 29, 2026 |
| 2597 | Line Segment Erase | 28%(445/1541) | Aug 15, 2026 |
| 2588 | Snakes | 31%(488/1555) | Aug 29, 2026 |
| 2500 | Pia's Party | 22%(518/2282) | Sep 5, 2026 |
| 2595 | Min-Max | 22%(576/2578) | Aug 29, 2026 |
| 2530 | Tetris Alphabet | 41%(578/1406) | Aug 10, 2026 |
| 2550 | Zipf's Law | 30%(593/1939) | Aug 13, 2026 |
| 2541 | Binary Witch | 37%(634/1706) | Aug 13, 2026 |
| 2504 | Bounding box | 39%(662/1683) | Dec 9, 2025 |
| 2539 | Division | 25%(669/2602) | Aug 10, 2026 |
| 2587 | Airline Hub | 32%(675/2053) | Aug 9, 2026 |
| 2558 | Genetic Code | 53%(697/1292) | Nov 20, 2025 |
| 2569 | Etaoin Shrdlu | 49%(706/1424) | Dec 9, 2025 |
| 2577 | Interpreter | 34%(781/2266) | Apr 3, 2026 |
| 2568 | Decode the Tree | 39%(783/1995) | Dec 31, 2025 |
| 2527 | Polynomial Remains | 56%(837/1484) | Aug 8, 2026 |
| 2555 | Drink, on Ice | 58%(890/1528) | Aug 8, 2026 |
| 2556 | Edge | 67%(942/1401) | Aug 7, 2026 |
| 2581 | Exact Change Only | 34%(957/2762) | Aug 8, 2026 |
| 2508 | Conic distance | 41%(1010/2452) | Nov 20, 2025 |
| 2599 | A funny game | 42%(1018/2414) | Aug 9, 2026 |
| 2565 | Average is not Fast Enough! | 43%(1022/2367) | Aug 7, 2026 |
| 2564 | Edit Step Ladders | 36%(1047/2905) | Aug 9, 2026 |
| 2526 | Center of symmetry | 44%(1182/2638) | Aug 7, 2026 |
| 2567 | Code the Tree | 38%(1199/3089) | Aug 8, 2026 |
| 2537 | Tight words | 46%(1349/2878) | Aug 25, 2026 |
| 2540 | Hotter Colder | 38%(1639/4205) | Sep 4, 2026 |
| 2579 | Blurred Vision | 70%(1672/2369) | Jul 26, 2026 |
| 2585 | Window Pains | 49%(1690/3431) | Aug 7, 2026 |
| 2535 | Very Simple Problem | 37%(1730/4642) | Apr 3, 2026 |
| 2552 | Assistance Required | 58%(1744/3002) | Aug 7, 2026 |
| 2570 | Fiber Network | 43%(1884/4365) | Aug 7, 2026 |
| 2584 | T-Shirt Gumbo | 47%(2000/4200) | May 6, 2026 |
| 2573 | Bridge | 32%(2005/6162) | Aug 7, 2026 |
| 2572 | Hard to Believe, but True! | 57%(2169/3780) | Jun 20, 2026 |
| 2507 | Crossed ladders | 37%(2186/5774) | Aug 7, 2026 |
| 2501 | Average Speed | 44%(2464/5482) | Jul 1, 2026 |
| 2546 | Circular Area | 34%(2870/8335) | Jun 24, 2026 |
| 2545 | Hamming Problem | 46%(3174/6861) | Apr 3, 2026 |
| 2576 | Tug of War | 28%(3287/11404) | Jul 19, 2026 |
| 2590 | Steps | 45%(3865/8474) | Apr 3, 2026 |
| 2505 | A multiplication game | 49%(4092/8219) | Apr 3, 2026 |
| 2583 | Series Determination | 65%(4339/6610) | Apr 3, 2026 |
| 2549 | Sumsets | 27%(4399/15916) | Aug 23, 2026 |
| 2536 | Gopher II | 39%(4431/11152) | Aug 5, 2026 |
| 2562 | Primary Arithmetic | 36%(4481/12322) | May 8, 2026 |
| 2560 | Freckles | 45%(4701/10396) | Sep 2, 2026 |
| 2591 | Set Definition | 46%(4729/10135) | Apr 3, 2026 |
| 2566 | Bound Found | 31%(5069/16235) | Aug 27, 2026 |
| 2594 | Treasure Exploration | 40%(5161/12719) | Aug 28, 2026 |
| 2538 | WERTYU | 45%(5184/11334) | Aug 28, 2026 |
| 2575 | Jolly Jumpers | 29%(5579/18605) | Jul 29, 2026 |
| 2553 | The Bottom of a Graph | 40%(5813/14338) | Sep 6, 2026 |
| 2502 | Subway | 31%(6460/20470) | Aug 6, 2026 |
| 2578 | Keep on Truckin' | 75%(6649/8789) | Apr 3, 2026 |
| 2551 | Ones | 55%(7016/12559) | Jul 24, 2026 |
| 2509 | Peter's smokes | 41%(7729/18785) | Apr 3, 2026 |
| 2516 | Minimum Cost | 35%(7801/22015) | Aug 5, 2026 |
| 2506 | Tiling | 42%(7984/18678) | Aug 22, 2026 |
| 2521 | How much did the businessman lose | 62%(8493/13658) | Jun 18, 2026 |
| 2593 | Max Sequence | 41%(8663/21001) | Apr 25, 2026 |
| 2531 | Network Saboteur | 51%(10278/20110) | Aug 25, 2026 |
| 2586 | Y2K Accounting Bug | 50%(11332/22600) | Aug 15, 2026 |
| 2513 | Colored Sticks | 25%(11691/45373) | Sep 5, 2026 |
| 2559 | Largest Rectangle in a Histogram | 33%(15277/46073) | Sep 6, 2026 |
| 2524 | Ubiquitous Religions | 45%(26555/58264) | Aug 27, 2026 |
| 2503 | Babelfish | 39%(30706/78500) | Aug 24, 2026 |
| 2528 | Mayor's posters | 28%(30987/109695) | Sep 5, 2026 |
| 2533 | Longest Ordered Subsequence | 44%(39670/88784) | Sep 5, 2026 |
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