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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 |
| 3433 | Road Accident | 30%(29/94) | Nov 25, 2025 |
| 3457 | Mineshaft | 10%(12/113) | Oct 18, 2025 |
| 3473 | Stochastic Finite State Automaton | 22%(26/115) | Dec 30, 2019 |
| 3474 | Ellipsoid | 19%(25/130) | Nov 25, 2025 |
| 3496 | Word Hyphenation | 8%(13/147) | Oct 21, 2025 |
| 3446 | Catch the Bus! | 35%(59/167) | Oct 20, 2025 |
| 3478 | Undergraduate Instruction Evaluation | 24%(55/227) | Oct 21, 2025 |
| 3466 | Distance to the Prey | 13%(35/252) | Nov 25, 2025 |
| 3490 | Jumping Frogs | 16%(46/283) | Oct 20, 2025 |
| 3454 | Hypertheseus | 56%(185/329) | Sep 2, 2025 |
| 3442 | Baseball | 33%(117/345) | Oct 20, 2025 |
| 3455 | Cheesy Chess | 37%(160/429) | Nov 17, 2025 |
| 3491 | Rotated Sky Charts | 7%(37/477) | Oct 18, 2025 |
| 3464 | Approximations | 5%(27/489) | Sep 1, 2025 |
| 3430 | Pizza schedule | 31%(157/492) | Nov 24, 2025 |
| 3426 | Doors and... more doors | 37%(190/503) | Nov 12, 2025 |
| 3451 | Money Money Money, Must Be Funny | 34%(181/523) | Oct 20, 2025 |
| 3448 | Roman Expressions | 47%(267/567) | Nov 25, 2025 |
| 3479 | RoBa Has a Second Art Gallery! | 14%(84/571) | Nov 20, 2025 |
| 3493 | Chessboard Puzzle | 47%(280/591) | Oct 23, 2025 |
| 3477 | System of Linear Equations | 14%(87/618) | Oct 19, 2025 |
| 3447 | Calendar of Events | 21%(142/659) | Oct 17, 2025 |
| 3423 | Automaton optimization | 53%(351/662) | Oct 19, 2025 |
| 3410 | Split convex polygon | 28%(198/703) | Oct 21, 2025 |
| 3453 | Soccer Tournament | 19%(167/849) | Oct 19, 2025 |
| 3418 | Quadratic Functions | 21%(182/861) | Nov 24, 2025 |
| 3403 | "Bloody Mary" | 4%(37/870) | Nov 17, 2025 |
| 3483 | Loan Scheduling | 54%(486/890) | Nov 25, 2025 |
| 3441 | Vacation Rentals | 25%(240/954) | Oct 18, 2025 |
| 3405 | Convex hull | 21%(216/992) | Oct 23, 2025 |
| 3472 | Holey Square Tiling | 30%(308/1015) | Oct 20, 2025 |
| 3459 | Projects | 43%(440/1022) | Oct 19, 2025 |
| 3495 | Bitwise XOR of Arithmetic Progression | 26%(275/1034) | Oct 30, 2025 |
| 3402 | Add a queen | 27%(288/1047) | Oct 21, 2025 |
| 3456 | Frobenius | 49%(539/1082) | Nov 25, 2025 |
| 3462 | Lucky Light | 38%(429/1124) | Nov 25, 2025 |
| 3489 | Knapsack I | 30%(342/1133) | Nov 25, 2025 |
| 3443 | Team Work | 30%(349/1144) | Oct 19, 2025 |
| 3482 | ‘JBC’ | 22%(266/1203) | Nov 12, 2025 |
| 3434 | Terrarium | 24%(294/1223) | Oct 20, 2025 |
| 3458 | Colour Sequence | 59%(846/1421) | Nov 25, 2025 |
| 3488 | Arne Saknussemm | 54%(778/1425) | Nov 12, 2025 |
| 3401 | String reduction | 32%(490/1521) | Nov 24, 2025 |
| 3452 | Railway Transportation | 32%(504/1564) | Nov 17, 2025 |
| 3431 | Texture Tile | 23%(411/1744) | Nov 25, 2025 |
| 3429 | Geometry with a ruler | 22%(393/1783) | May 5, 2025 |
| 3492 | Knapsack II | 25%(460/1809) | Nov 20, 2025 |
| 3499 | Containers | 25%(466/1835) | Nov 6, 2025 |
| 3467 | Cross Counting | 29%(540/1848) | Nov 25, 2025 |
| 3407 | Brookebond s'en va en guerre... | 47%(872/1853) | Nov 24, 2025 |
| 3409 | Broken line | 16%(305/1870) | Nov 24, 2025 |
| 3424 | Better security | 18%(356/1879) | Nov 18, 2025 |
| 3408 | The Domino Principle | 25%(487/1883) | Nov 24, 2025 |
| 3413 | RPG | 29%(572/1949) | Nov 20, 2025 |
| 3435 | Sudoku Checker | 44%(872/1976) | Nov 20, 2025 |
| 3400 | Dropping the stones | 35%(718/2004) | Nov 20, 2025 |
| 3416 | Crossing | 45%(909/2007) | Nov 24, 2025 |
| 3485 | Highway | 37%(751/2017) | Nov 20, 2025 |
| 3412 | Ray | 20%(442/2144) | Nov 20, 2025 |
| 3428 | Formatting function | 14%(343/2362) | Nov 12, 2025 |
| 3444 | Wavelet Compression | 64%(1540/2384) | Oct 19, 2025 |
| 3475 | Paper-, er, Transcript-Folding Game | 34%(834/2388) | Nov 25, 2025 |
| 3471 | Integral Roots | 14%(349/2455) | Nov 25, 2025 |
| 3439 | Server Relocation | 36%(949/2619) | Nov 25, 2025 |
| 3445 | Elementary Additions | 54%(1434/2629) | Oct 18, 2025 |
| 3449 | Geometric Shapes | 39%(1115/2818) | Nov 17, 2025 |
| 3486 | Computers | 37%(1090/2876) | Nov 20, 2025 |
| 3425 | Customer support | 46%(1356/2915) | Nov 24, 2025 |
| 3465 | Battle | 26%(770/2945) | Nov 19, 2025 |
| 3432 | Count Squares | 44%(1387/3123) | Nov 25, 2025 |
| 3470 | Walls | 16%(527/3198) | Oct 21, 2025 |
| 3419 | Difference Is Beautiful | 28%(951/3332) | Oct 21, 2025 |
| 3406 | Last digit | 30%(1022/3355) | Nov 20, 2025 |
| 3460 | Booksort | 45%(1545/3421) | Nov 25, 2025 |
| 3437 | Tree Grafting | 44%(1512/3433) | Nov 25, 2025 |
| 3476 | A Game with Colored Balls | 15%(557/3545) | Oct 23, 2025 |
| 3484 | Showstopper | 30%(1204/3989) | Nov 12, 2025 |
| 3480 | John | 49%(2027/4088) | Nov 20, 2025 |
| 3404 | Bridge over a rough river | 41%(1856/4503) | Nov 20, 2025 |
| 3427 | Ecology tax | 52%(2537/4789) | Nov 20, 2025 |
| 3497 | Assemble | 30%(1475/4864) | Nov 25, 2025 |
| 3440 | Coin Toss | 27%(1630/5897) | Oct 21, 2025 |
| 3420 | Quad Tiling | 44%(2635/5917) | Nov 20, 2025 |
| 3498 | March of the Penguins | 46%(2756/5968) | Nov 20, 2025 |
| 3411 | Paid Roads | 37%(3677/9719) | Nov 24, 2025 |
| 3438 | Look and Say | 60%(5975/9856) | Nov 20, 2025 |
| 3450 | Corporate Identity | 32%(3543/10971) | Oct 20, 2025 |
| 3422 | Kaka's Matrix Travels | 41%(5033/12264) | Nov 24, 2025 |
| 3421 | X-factor Chains | 32%(3957/12352) | Nov 20, 2025 |
| 3494 | Largest Submatrix of All 1’s | 33%(4217/12416) | Nov 20, 2025 |
| 3463 | Sightseeing | 35%(4682/13256) | Nov 25, 2025 |
| 3436 | ACM Computer Factory | 36%(4946/13494) | Oct 20, 2025 |
| 3487 | The Stable Marriage Problem | 31%(4342/13974) | Nov 25, 2025 |
| 3417 | Network | 25%(3720/14328) | Nov 25, 2025 |
| 3415 | Common Substrings | 33%(5790/17429) | Nov 20, 2025 |
| 3481 | Double Queue | 42%(10612/25208) | Nov 25, 2025 |
| 3469 | Dual Core CPU | 42%(12715/30070) | Nov 25, 2025 |
| 3414 | Pots | 39%(16087/40227) | Nov 22, 2025 |
| 3461 | Oulipo | 37%(28296/76042) | Nov 25, 2025 |
| 3468 | A Simple Problem with Integers | 30%(65612/214947) | Nov 25, 2025 |
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