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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 |
| 2650 | Spaghetti | 31%(57/179) | Dec 1, 2025 |
| 2655 | Structural Equivalence | 35%(71/200) | Dec 1, 2025 |
| 2621 | Parallelepiped | 23%(66/278) | Dec 1, 2025 |
| 2634 | Nullary Computer | 32%(91/280) | Dec 1, 2025 |
| 2682 | Tomato Automata | 23%(69/289) | Dec 1, 2025 |
| 2616 | Origami | 48%(157/326) | Dec 1, 2025 |
| 2687 | Earth Observation with a Mobile Robot Team | 26%(90/339) | Oct 18, 2025 |
| 2617 | Taxes | 9%(42/449) | Oct 19, 2025 |
| 2648 | CDVII | 28%(138/488) | Dec 1, 2025 |
| 2651 | So you want to be a 2n-aire? | 62%(336/534) | Nov 20, 2025 |
| 2622 | Convex hull | 19%(105/546) | Oct 17, 2025 |
| 2625 | Coupons | 55%(309/555) | Dec 1, 2025 |
| 2690 | Yahtzee | 35%(207/584) | Oct 20, 2025 |
| 2604 | Preparing an article | 23%(143/614) | Dec 1, 2025 |
| 2600 | Geometrical dreams | 52%(327/619) | Nov 24, 2025 |
| 2638 | Kingdom | 26%(163/625) | Oct 21, 2025 |
| 2691 | Request for Proposal | 44%(289/644) | Dec 1, 2025 |
| 2618 | Cube in Labyrinth | 25%(169/652) | Nov 25, 2025 |
| 2667 | Barber's problem | 21%(156/730) | Dec 1, 2025 |
| 2695 | Rick the Persistent Gnu | 39%(329/840) | Nov 24, 2025 |
| 2628 | Table Legs | 36%(340/930) | Dec 1, 2025 |
| 2630 | Security Panel | 34%(327/961) | Dec 1, 2025 |
| 2697 | A Board Game | 68%(665/971) | Nov 24, 2025 |
| 2639 | Necklace Decomposition | 36%(371/1016) | Nov 20, 2025 |
| 2660 | War on Weather | 57%(584/1019) | Nov 20, 2025 |
| 2605 | Simple game on a grid | 50%(523/1037) | Dec 1, 2025 |
| 2644 | Maze | 17%(182/1056) | Nov 24, 2025 |
| 2678 | Mothy | 20%(213/1058) | Oct 20, 2025 |
| 2652 | Ferry Loading III | 31%(337/1067) | Nov 20, 2025 |
| 2647 | Doublets | 33%(376/1107) | Nov 20, 2025 |
| 2669 | Explore the Pirate's Cave | 18%(223/1200) | Dec 1, 2025 |
| 2633 | Funny Games | 21%(266/1260) | Dec 1, 2025 |
| 2683 | Ohgas' Fortune | 60%(807/1327) | Nov 24, 2025 |
| 2611 | Gas Station Numbers | 29%(413/1399) | Dec 1, 2025 |
| 2672 | Hotkeys | 20%(304/1464) | Dec 1, 2025 |
| 2642 | The Brick Stops Here | 30%(451/1468) | Nov 20, 2025 |
| 2641 | Billiard | 60%(912/1509) | Nov 20, 2025 |
| 2671 | Jimmy's Bad Day | 32%(493/1528) | Dec 1, 2025 |
| 2615 | Suffidromes | 21%(330/1531) | Dec 1, 2025 |
| 2694 | A Simple Poker Game | 46%(752/1603) | Nov 26, 2025 |
| 2659 | Bomb Game | 41%(675/1635) | Nov 26, 2025 |
| 2658 | Song | 27%(465/1666) | Nov 26, 2025 |
| 2679 | Adventurous Driving | 30%(536/1763) | Dec 1, 2025 |
| 2692 | Australian Voting | 24%(443/1842) | Nov 20, 2025 |
| 2614 | Old Wine Into New Bottles | 28%(551/1906) | Dec 1, 2025 |
| 2670 | The Sorcerer's Stone | 16%(311/1914) | Oct 21, 2025 |
| 2609 | Ferry Loading | 27%(574/2056) | Dec 1, 2025 |
| 2698 | Servicing DVD Requests | 31%(665/2140) | Nov 20, 2025 |
| 2627 | Gopher and hawks | 38%(821/2142) | Nov 25, 2025 |
| 2675 | Songs | 39%(864/2190) | Nov 20, 2025 |
| 2645 | Boastin' Red Socks | 25%(561/2215) | Nov 24, 2025 |
| 2619 | Delta-wave | 40%(981/2434) | Dec 1, 2025 |
| 2666 | Back to Mother Ship | 33%(829/2468) | Nov 24, 2025 |
| 2685 | Numeral System | 73%(1823/2486) | Nov 26, 2025 |
| 2684 | Polygonal Line Search | 61%(1565/2539) | Nov 24, 2025 |
| 2626 | Chess | 46%(1237/2676) | Nov 20, 2025 |
| 2699 | The Maximum Number of Strong Kings | 45%(1300/2876) | Dec 1, 2025 |
| 2657 | Comfort | 36%(1063/2895) | Nov 24, 2025 |
| 2662 | A Walk Through the Forest | 36%(1050/2899) | Nov 26, 2025 |
| 2637 | WorstWeather Ever | 20%(609/2918) | Dec 1, 2025 |
| 2640 | Playground | 38%(1193/3115) | Dec 1, 2025 |
| 2693 | Chocolate Chip Cookies | 22%(761/3336) | Nov 26, 2025 |
| 2646 | The Trip | 30%(1103/3607) | Nov 26, 2025 |
| 2696 | A Mysterious Function | 68%(2883/4182) | Dec 1, 2025 |
| 2654 | Rock-Paper-Scissors Tournament | 29%(1266/4357) | Nov 24, 2025 |
| 2610 | Dog & Gopher | 41%(1819/4380) | Nov 20, 2025 |
| 2664 | Prerequisites? | 60%(2704/4476) | Nov 20, 2025 |
| 2613 | Choose and divide | 31%(1400/4482) | Nov 20, 2025 |
| 2681 | Anagrammatic Distance | 53%(2491/4627) | Dec 1, 2025 |
| 2607 | Fire Station | 35%(1673/4655) | Nov 20, 2025 |
| 2649 | Factovisors | 24%(1206/4937) | Nov 20, 2025 |
| 2680 | Computer Transformation | 36%(1836/4967) | Nov 24, 2025 |
| 2620 | Minimal coverage | 28%(1445/5009) | Nov 25, 2025 |
| 2643 | Election | 44%(2286/5124) | Dec 1, 2025 |
| 2673 | Kicc Wants to Move a Mountain! | 26%(1362/5188) | Nov 24, 2025 |
| 2668 | Defending Castle | 24%(1274/5192) | Nov 20, 2025 |
| 2677 | Tour | 42%(2217/5214) | Nov 20, 2025 |
| 2624 | 4th Point | 35%(1925/5491) | Nov 25, 2025 |
| 2603 | Brave balloonists | 40%(2363/5828) | Nov 24, 2025 |
| 2629 | Common permutation | 30%(1869/6100) | Nov 20, 2025 |
| 2674 | Linear world | 22%(1394/6167) | Nov 24, 2025 |
| 2661 | Factstone Benchmark | 43%(2770/6432) | Nov 20, 2025 |
| 2688 | Cleaning Robot | 35%(2370/6651) | Nov 26, 2025 |
| 2686 | Traveling by Stagecoach | 40%(2896/7080) | Dec 1, 2025 |
| 2601 | Simple calculations | 49%(3525/7182) | Nov 20, 2025 |
| 2612 | Mine Sweeper | 38%(3114/8151) | Nov 24, 2025 |
| 2606 | Rabbit hunt | 49%(4299/8608) | Nov 20, 2025 |
| 2631 | Roads in the North | 44%(4165/9272) | Nov 29, 2025 |
| 2636 | Electrical Outlets | 74%(7606/10205) | Nov 26, 2025 |
| 2608 | Soundex | 49%(5103/10405) | Dec 3, 2025 |
| 2665 | Trees | 64%(7206/11236) | Nov 26, 2025 |
| 2656 | Unhappy Jinjin | 72%(8756/12053) | Nov 20, 2025 |
| 2632 | Crashing Robots | 41%(6393/15480) | Nov 24, 2025 |
| 2663 | Tri Tiling | 48%(7908/16324) | Dec 4, 2025 |
| 2653 | Pick-up sticks | 37%(7107/19166) | Nov 24, 2025 |
| 2635 | The Embarrassed Cryptographer | 25%(4981/19689) | Dec 6, 2025 |
| 2623 | Sequence Median | 27%(5655/20554) | Nov 24, 2025 |
| 2602 | Superlong sums | 29%(7368/24845) | Nov 24, 2025 |
| 2676 | Sudoku | 44%(16755/37658) | Nov 30, 2025 |
| 2689 | Prime Distance | 24%(10359/42613) | Dec 6, 2025 |
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