| ID | Title | Ratio(AC/submit) |
Date |
| 3400 | Dropping the stones | 35%(719/2006) | Jan 8, 2026 |
| 3401 | String reduction | 32%(490/1527) | Jan 8, 2026 |
| 3402 | Add a queen | 27%(288/1051) | Jan 8, 2026 |
| 3403 | "Bloody Mary" | 4%(37/874) | Jan 8, 2026 |
| 3404 | Bridge over a rough river | 41%(1858/4505) | Jan 7, 2026 |
| 3405 | Convex hull | 21%(216/995) | Jan 8, 2026 |
| 3406 | Last digit | 30%(1022/3355) | Nov 20, 2025 |
| 3407 | Brookebond s'en va en guerre... | 46%(872/1856) | Jan 8, 2026 |
| 3408 | The Domino Principle | 25%(487/1885) | Jan 8, 2026 |
| 3409 | Broken line | 16%(305/1870) | Nov 24, 2025 |
| 3410 | Split convex polygon | 28%(198/704) | Dec 10, 2025 |
| 3411 | Paid Roads | 37%(3677/9719) | Nov 24, 2025 |
| 3412 | Ray | 20%(444/2146) | Jan 8, 2026 |
| 3413 | RPG | 29%(572/1949) | Nov 20, 2025 |
| 3414 | Pots | 39%(16094/40253) | Jan 8, 2026 |
| 3415 | Common Substrings | 33%(5790/17432) | Jan 8, 2026 |
| 3416 | Crossing | 45%(909/2007) | Nov 24, 2025 |
| 3417 | Network | 25%(3721/14332) | Jan 8, 2026 |
| 3418 | Quadratic Functions | 21%(182/865) | Jan 8, 2026 |
| 3419 | Difference Is Beautiful | 28%(952/3336) | Jan 7, 2026 |
| 3420 | Quad Tiling | 44%(2635/5917) | Nov 20, 2025 |
| 3421 | X-factor Chains | 32%(3959/12357) | Dec 9, 2025 |
| 3422 | Kaka's Matrix Travels | 41%(5034/12268) | Jan 7, 2026 |
| 3423 | Automaton optimization | 52%(351/664) | Dec 10, 2025 |
| 3424 | Better security | 18%(356/1883) | Jan 8, 2026 |
| 3425 | Customer support | 46%(1356/2916) | Jan 8, 2026 |
| 3426 | Doors and... more doors | 37%(190/504) | Dec 3, 2025 |
| 3427 | Ecology tax | 52%(2537/4791) | Jan 7, 2026 |
| 3428 | Formatting function | 14%(343/2364) | Dec 10, 2025 |
| 3429 | Geometry with a ruler | 22%(395/1788) | Jan 8, 2026 |
| 3430 | Pizza schedule | 31%(157/492) | Nov 24, 2025 |
| 3431 | Texture Tile | 23%(411/1744) | Nov 25, 2025 |
| 3432 | Count Squares | 44%(1387/3125) | Jan 8, 2026 |
| 3433 | Road Accident | 30%(29/96) | Dec 9, 2025 |
| 3434 | Terrarium | 24%(294/1225) | Dec 3, 2025 |
| 3435 | Sudoku Checker | 44%(872/1978) | Jan 7, 2026 |
| 3436 | ACM Computer Factory | 36%(4951/13501) | Jan 5, 2026 |
| 3437 | Tree Grafting | 44%(1513/3435) | Jan 7, 2026 |
| 3438 | Look and Say | 60%(5975/9857) | Jan 8, 2026 |
| 3439 | Server Relocation | 36%(949/2622) | Jan 8, 2026 |
| 3440 | Coin Toss | 27%(1631/5904) | Dec 21, 2025 |
| 3441 | Vacation Rentals | 25%(240/957) | Jan 8, 2026 |
| 3442 | Baseball | 33%(117/346) | Dec 3, 2025 |
| 3443 | Team Work | 30%(349/1146) | Dec 10, 2025 |
| 3444 | Wavelet Compression | 64%(1544/2388) | Jan 8, 2026 |
| 3445 | Elementary Additions | 54%(1434/2631) | Dec 10, 2025 |
| 3446 | Catch the Bus! | 35%(59/168) | Dec 10, 2025 |
| 3447 | Calendar of Events | 21%(142/663) | Jan 8, 2026 |
| 3448 | Roman Expressions | 47%(267/568) | Nov 26, 2025 |
| 3449 | Geometric Shapes | 39%(1115/2819) | Dec 10, 2025 |
| 3450 | Corporate Identity | 32%(3545/10974) | Jan 8, 2026 |
| 3451 | Money Money Money, Must Be Funny | 34%(181/524) | Dec 10, 2025 |
| 3452 | Railway Transportation | 32%(504/1566) | Dec 10, 2025 |
| 3453 | Soccer Tournament | 19%(167/851) | Dec 10, 2025 |
| 3454 | Hypertheseus | 56%(186/332) | Dec 10, 2025 |
| 3455 | Cheesy Chess | 37%(160/431) | Dec 10, 2025 |
| 3456 | Frobenius | 49%(539/1082) | Nov 25, 2025 |
| 3457 | Mineshaft | 10%(12/114) | Dec 10, 2025 |
| 3458 | Colour Sequence | 59%(848/1423) | Jan 7, 2026 |
| 3459 | Projects | 42%(440/1027) | Jan 8, 2026 |
| 3460 | Booksort | 45%(1546/3424) | Jan 8, 2026 |
| 3461 | Oulipo | 37%(28302/76077) | Jan 8, 2026 |
| 3462 | Lucky Light | 38%(429/1124) | Nov 25, 2025 |
| 3463 | Sightseeing | 35%(4682/13258) | Jan 10, 2026 |
| 3464 | Approximations | 5%(27/491) | Dec 10, 2025 |
| 3465 | Battle | 26%(770/2946) | Dec 3, 2025 |
| 3466 | Distance to the Prey | 13%(35/253) | Dec 3, 2025 |
| 3467 | Cross Counting | 29%(540/1850) | Dec 10, 2025 |
| 3468 | A Simple Problem with Integers | 30%(65653/215096) | Jan 6, 2026 |
| 3469 | Dual Core CPU | 42%(12724/30113) | Jan 9, 2026 |
| 3470 | Walls | 16%(527/3201) | Jan 8, 2026 |
| 3471 | Integral Roots | 14%(349/2460) | Jan 8, 2026 |
| 3472 | Holey Square Tiling | 30%(308/1017) | Dec 10, 2025 |
| 3473 | Stochastic Finite State Automaton | 22%(26/117) | Dec 10, 2025 |
| 3474 | Ellipsoid | 19%(25/131) | Dec 10, 2025 |
| 3475 | Paper-, er, Transcript-Folding Game | 34%(836/2393) | Jan 9, 2026 |
| 3476 | A Game with Colored Balls | 15%(557/3548) | Jan 7, 2026 |
| 3477 | System of Linear Equations | 14%(87/620) | Dec 10, 2025 |
| 3478 | Undergraduate Instruction Evaluation | 24%(55/229) | Dec 10, 2025 |
| 3479 | RoBa Has a Second Art Gallery! | 14%(84/572) | Dec 10, 2025 |
| 3480 | John | 49%(2029/4090) | Jan 7, 2026 |
| 3481 | Double Queue | 42%(10617/25221) | Jan 9, 2026 |
| 3482 | ‘JBC’ | 22%(266/1207) | Jan 7, 2026 |
| 3483 | Loan Scheduling | 54%(486/890) | Nov 25, 2025 |
| 3484 | Showstopper | 30%(1205/3992) | Jan 5, 2026 |
| 3485 | Highway | 37%(752/2020) | Jan 7, 2026 |
| 3486 | Computers | 37%(1090/2877) | Jan 8, 2026 |
| 3487 | The Stable Marriage Problem | 31%(4343/13975) | Dec 25, 2025 |
| 3488 | Arne Saknussemm | 54%(778/1427) | Dec 10, 2025 |
| 3489 | Knapsack I | 30%(342/1133) | Nov 25, 2025 |
| 3490 | Jumping Frogs | 16%(46/287) | Jan 7, 2026 |
| 3491 | Rotated Sky Charts | 7%(37/478) | Dec 10, 2025 |
| 3492 | Knapsack II | 25%(460/1809) | Nov 20, 2025 |
| 3493 | Chessboard Puzzle | 47%(280/594) | Jan 8, 2026 |
| 3494 | Largest Submatrix of All 1’s | 33%(4219/12424) | Jan 8, 2026 |
| 3495 | Bitwise XOR of Arithmetic Progression | 26%(275/1038) | Dec 10, 2025 |
| 3496 | Word Hyphenation | 8%(13/148) | Dec 3, 2025 |
| 3497 | Assemble | 30%(1475/4864) | Nov 25, 2025 |
| 3498 | March of the Penguins | 46%(2758/5974) | Dec 17, 2025 |
| 3499 | Containers | 25%(466/1837) | Dec 10, 2025 |
