| ID | Title | Ratio(AC/submit) |
Date |
| 3457 | Mineshaft | 10%(12/112) | Feb 2, 2025 |
| 3496 | Word Hyphenation | 8%(13/145) | Sep 1, 2025 |
| 3474 | Ellipsoid | 19%(25/126) | Sep 4, 2025 |
| 3473 | Stochastic Finite State Automaton | 22%(26/115) | Dec 30, 2019 |
| 3464 | Approximations | 5%(27/489) | Sep 1, 2025 |
| 3433 | Road Accident | 31%(29/93) | May 25, 2025 |
| 3466 | Distance to the Prey | 13%(35/251) | Mar 29, 2022 |
| 3403 | "Bloody Mary" | 4%(36/868) | Sep 14, 2024 |
| 3491 | Rotated Sky Charts | 7%(37/476) | Sep 2, 2025 |
| 3490 | Jumping Frogs | 16%(46/282) | May 31, 2025 |
| 3478 | Undergraduate Instruction Evaluation | 23%(54/226) | May 31, 2025 |
| 3446 | Catch the Bus! | 35%(59/166) | Mar 18, 2025 |
| 3479 | RoBa Has a Second Art Gallery! | 14%(84/569) | May 31, 2025 |
| 3477 | System of Linear Equations | 14%(87/617) | Sep 1, 2025 |
| 3442 | Baseball | 34%(117/344) | Feb 21, 2020 |
| 3447 | Calendar of Events | 21%(142/658) | May 31, 2025 |
| 3430 | Pizza schedule | 31%(155/490) | Dec 8, 2024 |
| 3455 | Cheesy Chess | 37%(159/428) | May 31, 2025 |
| 3453 | Soccer Tournament | 19%(167/848) | May 31, 2025 |
| 3451 | Money Money Money, Must Be Funny | 34%(181/522) | Feb 2, 2025 |
| 3418 | Quadratic Functions | 21%(182/859) | Jan 17, 2025 |
| 3454 | Hypertheseus | 56%(185/329) | Sep 2, 2025 |
| 3426 | Doors and... more doors | 38%(190/497) | Sep 5, 2025 |
| 3410 | Split convex polygon | 28%(198/699) | Sep 1, 2025 |
| 3405 | Convex hull | 21%(216/990) | Sep 2, 2025 |
| 3441 | Vacation Rentals | 25%(240/953) | Sep 2, 2025 |
| 3482 | ‘JBC’ | 22%(265/1201) | Sep 2, 2025 |
| 3448 | Roman Expressions | 46%(265/565) | May 31, 2025 |
| 3495 | Bitwise XOR of Arithmetic Progression | 26%(275/1031) | May 31, 2025 |
| 3493 | Chessboard Puzzle | 47%(280/589) | May 31, 2025 |
| 3402 | Add a queen | 27%(288/1046) | Sep 1, 2025 |
| 3434 | Terrarium | 24%(294/1222) | Sep 4, 2025 |
| 3409 | Broken line | 16%(303/1867) | Nov 29, 2024 |
| 3472 | Holey Square Tiling | 30%(308/1014) | Sep 1, 2025 |
| 3428 | Formatting function | 14%(340/2359) | Sep 19, 2024 |
| 3489 | Knapsack I | 30%(340/1131) | Sep 2, 2025 |
| 3471 | Integral Roots | 14%(349/2453) | Sep 5, 2025 |
| 3443 | Team Work | 30%(349/1143) | Sep 25, 2019 |
| 3423 | Automaton optimization | 53%(351/661) | Sep 2, 2025 |
| 3424 | Better security | 19%(355/1868) | Sep 4, 2025 |
| 3429 | Geometry with a ruler | 22%(393/1783) | May 5, 2025 |
| 3431 | Texture Tile | 23%(410/1742) | Dec 5, 2024 |
| 3462 | Lucky Light | 38%(426/1121) | May 29, 2025 |
| 3459 | Projects | 43%(440/1021) | Sep 1, 2025 |
| 3412 | Ray | 20%(440/2142) | Jul 30, 2024 |
| 3492 | Knapsack II | 25%(459/1807) | May 31, 2025 |
| 3499 | Containers | 25%(464/1831) | Feb 2, 2025 |
| 3483 | Loan Scheduling | 54%(483/887) | May 31, 2025 |
| 3408 | The Domino Principle | 25%(487/1880) | May 27, 2025 |
| 3401 | String reduction | 32%(488/1518) | Sep 26, 2024 |
| 3452 | Railway Transportation | 32%(502/1562) | Sep 14, 2025 |
| 3470 | Walls | 16%(527/3197) | Sep 4, 2025 |
| 3456 | Frobenius | 49%(537/1080) | Sep 17, 2025 |
| 3467 | Cross Counting | 29%(540/1845) | Sep 1, 2025 |
| 3476 | A Game with Colored Balls | 15%(556/3543) | Jul 23, 2025 |
| 3413 | RPG | 29%(571/1947) | Jul 15, 2024 |
| 3400 | Dropping the stones | 35%(716/2001) | Sep 1, 2025 |
| 3485 | Highway | 37%(750/2016) | Sep 5, 2025 |
| 3465 | Battle | 26%(770/2927) | Jan 24, 2023 |
| 3488 | Arne Saknussemm | 54%(776/1423) | Nov 18, 2024 |
| 3475 | Paper-, er, Transcript-Folding Game | 34%(832/2385) | Sep 11, 2025 |
| 3458 | Colour Sequence | 59%(844/1419) | May 31, 2025 |
| 3435 | Sudoku Checker | 44%(870/1973) | Aug 2, 2023 |
| 3407 | Brookebond s'en va en guerre... | 47%(872/1851) | May 15, 2023 |
| 3416 | Crossing | 45%(907/2004) | Nov 6, 2024 |
| 3439 | Server Relocation | 36%(949/2616) | Jun 25, 2021 |
| 3419 | Difference Is Beautiful | 28%(951/3331) | Aug 3, 2025 |
| 3406 | Last digit | 30%(1021/3354) | Sep 6, 2025 |
| 3486 | Computers | 37%(1088/2873) | Sep 6, 2025 |
| 3449 | Geometric Shapes | 39%(1114/2816) | Oct 9, 2025 |
| 3484 | Showstopper | 30%(1203/3987) | May 31, 2025 |
| 3425 | Customer support | 46%(1354/2913) | Sep 2, 2025 |
| 3432 | Count Squares | 44%(1385/3121) | Jul 30, 2024 |
| 3445 | Elementary Additions | 54%(1433/2628) | Sep 2, 2025 |
| 3497 | Assemble | 30%(1473/4861) | Aug 28, 2025 |
| 3437 | Tree Grafting | 44%(1510/3430) | Sep 17, 2025 |
| 3444 | Wavelet Compression | 64%(1539/2383) | Feb 6, 2025 |
| 3460 | Booksort | 45%(1543/3419) | Aug 13, 2025 |
| 3440 | Coin Toss | 27%(1630/5896) | Feb 10, 2025 |
| 3404 | Bridge over a rough river | 41%(1854/4500) | Sep 28, 2025 |
| 3480 | John | 49%(2025/4086) | Sep 5, 2025 |
| 3427 | Ecology tax | 52%(2533/4785) | Sep 17, 2024 |
| 3420 | Quad Tiling | 44%(2631/5912) | Sep 1, 2025 |
| 3498 | March of the Penguins | 46%(2754/5966) | Jul 30, 2025 |
| 3450 | Corporate Identity | 32%(3543/10970) | Sep 2, 2025 |
| 3411 | Paid Roads | 37%(3676/9717) | Sep 12, 2025 |
| 3417 | Network | 26%(3712/14213) | Oct 8, 2025 |
| 3421 | X-factor Chains | 32%(3956/12351) | Sep 3, 2025 |
| 3494 | Largest Submatrix of All 1’s | 33%(4216/12414) | Sep 27, 2025 |
| 3487 | The Stable Marriage Problem | 31%(4281/13748) | Sep 21, 2025 |
| 3463 | Sightseeing | 35%(4677/13248) | Sep 25, 2025 |
| 3436 | ACM Computer Factory | 36%(4944/13489) | Sep 17, 2025 |
| 3422 | Kaka's Matrix Travels | 41%(5027/12254) | Sep 25, 2025 |
| 3415 | Common Substrings | 33%(5786/17415) | Sep 28, 2025 |
| 3438 | Look and Say | 60%(5974/9854) | Sep 2, 2025 |
| 3481 | Double Queue | 42%(10611/25206) | Sep 6, 2025 |
| 3469 | Dual Core CPU | 42%(12704/30049) | Sep 18, 2025 |
| 3414 | Pots | 39%(16076/40196) | Sep 28, 2025 |
| 3461 | Oulipo | 37%(28281/75974) | Oct 8, 2025 |
| 3468 | A Simple Problem with Integers | 30%(65599/214913) | Oct 9, 2025 |
