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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 |
| 3676 | Tomorrow Genius 2008 | 16%(18/107) | Dec 3, 2025 |
| 3651 | Slink | 23%(27/114) | Dec 10, 2025 |
| 3611 | Minimum Weighted Perfect Fractional b-Matching | 34%(48/141) | Dec 10, 2025 |
| 3610 | Maclaurin Series of Reciprocals | 24%(64/261) | Dec 3, 2025 |
| 3679 | The Delivery of Control | 29%(74/255) | Dec 10, 2025 |
| 3603 | Zen Puzzle Garden | 24%(75/307) | Dec 3, 2025 |
| 3677 | Chemical Weighing | 15%(94/611) | May 7, 2026 |
| 3655 | Guard | 37%(101/268) | Oct 21, 2025 |
| 3634 | Circle of Debt | 33%(114/345) | Apr 4, 2026 |
| 3689 | Equations | 9%(148/1559) | Jan 7, 2026 |
| 3644 | Gangs | 31%(152/487) | Jan 8, 2026 |
| 3647 | Tournament | 22%(171/767) | Mar 18, 2026 |
| 3642 | Carpool | 19%(178/927) | May 24, 2026 |
| 3607 | Distribution of Toys | 16%(210/1255) | May 9, 2026 |
| 3606 | Sheryl's Circuit II | 41%(222/536) | Dec 10, 2025 |
| 3649 | Typesetting | 41%(258/628) | Dec 10, 2025 |
| 3643 | Friend or Foe? | 28%(311/1086) | Mar 16, 2026 |
| 3633 | Copying DNA | 34%(315/921) | May 6, 2026 |
| 3609 | Reset Sequence | 36%(369/1013) | Mar 16, 2026 |
| 3631 | Cuckoo Hashing | 33%(446/1344) | Jan 7, 2026 |
| 3605 | Sheryl's Circuit I | 41%(524/1256) | Dec 3, 2025 |
| 3674 | Super Assassin | 22%(564/2560) | Dec 10, 2025 |
| 3602 | Typographical Ligatures | 43%(582/1334) | Mar 6, 2026 |
| 3638 | Moogle | 42%(611/1426) | Dec 3, 2025 |
| 3654 | Electronic Document Security | 59%(688/1164) | Apr 5, 2026 |
| 3688 | Cheat in the Game | 37%(695/1843) | Jun 3, 2026 |
| 3645 | Smeech | 26%(717/2755) | Dec 10, 2025 |
| 3656 | Rock Skipping | 40%(726/1777) | Nov 26, 2025 |
| 3653 | Here We Go(relians) Again | 42%(738/1731) | Dec 10, 2025 |
| 3699 | miniSQL | 29%(748/2514) | Jan 8, 2026 |
| 3657 | Haybale Guessing | 26%(780/2952) | Dec 3, 2025 |
| 3601 | Tower of Hanoi | 30%(781/2559) | Apr 17, 2026 |
| 3658 | Artificial Lake | 35%(866/2440) | Jan 7, 2026 |
| 3639 | Exchange Rates | 34%(986/2818) | Apr 4, 2026 |
| 3622 | Gourmet Grazers | 35%(1026/2862) | Jan 8, 2026 |
| 3681 | Finding the Rectangle | 30%(1037/3421) | Apr 4, 2026 |
| 3640 | Conformity | 27%(1097/4025) | Apr 4, 2026 |
| 3600 | Subimage Recognition | 38%(1271/3343) | Apr 4, 2026 |
| 3675 | Telescope | 27%(1280/4722) | Apr 24, 2026 |
| 3695 | Rectangles | 30%(1315/4362) | Apr 4, 2026 |
| 3612 | Telephone Wire | 34%(1344/3913) | Apr 18, 2026 |
| 3682 | King Arthur's Birthday Celebration | 32%(1518/4619) | Jun 3, 2026 |
| 3697 | USTC campus network | 30%(1607/5254) | Apr 4, 2026 |
| 3690 | Constellations | 20%(1644/7965) | Apr 4, 2026 |
| 3652 | Persistent Bits | 57%(1649/2888) | Apr 4, 2026 |
| 3684 | Physics Experiment | 35%(1889/5271) | May 17, 2026 |
| 3626 | Mud Puddles | 55%(2113/3835) | May 22, 2026 |
| 3646 | The Dragon of Loowater | 47%(2325/4893) | May 27, 2026 |
| 3604 | Professor Ben | 25%(2361/9288) | Dec 10, 2025 |
| 3623 | Best Cow Line, Gold | 33%(2361/7031) | Apr 4, 2026 |
| 3618 | Exploration | 47%(2458/5132) | Apr 5, 2026 |
| 3636 | Nested Dolls | 27%(2537/9195) | Jan 9, 2026 |
| 3665 | iCow | 36%(2575/7031) | Apr 4, 2026 |
| 3668 | Game of Lines | 37%(2831/7514) | Apr 4, 2026 |
| 3686 | The Windy's | 39%(2963/7429) | Apr 4, 2026 |
| 3629 | Card Stacking | 32%(3048/9440) | Apr 30, 2026 |
| 3696 | The Luckiest number | 24%(3143/12751) | May 9, 2026 |
| 3637 | Shopaholic | 57%(3197/5576) | May 8, 2026 |
| 3661 | Running | 37%(3337/8964) | May 27, 2026 |
| 3659 | Cell Phone Network | 34%(3440/9865) | May 16, 2026 |
| 3671 | Dining Cows | 40%(3867/9450) | Jun 2, 2026 |
| 3670 | Eating Together | 48%(3886/8050) | Apr 4, 2026 |
| 3625 | Building Roads | 27%(3918/14510) | Apr 4, 2026 |
| 3691 | DNA repair | 45%(3941/8743) | Mar 20, 2026 |
| 3608 | Bridge Across Islands | 28%(4208/14721) | Apr 3, 2026 |
| 3648 | Wedding | 30%(4326/14361) | Jun 4, 2026 |
| 3615 | Cow Hurdles | 42%(4498/10591) | Jan 7, 2026 |
| 3693 | Maximum repetition substring | 30%(4499/14836) | Apr 13, 2026 |
| 3692 | Kindergarten | 47%(4515/9516) | Apr 4, 2026 |
| 3680 | Intervals | 43%(4554/10576) | Apr 23, 2026 |
| 3619 | Speed Reading | 46%(4695/10001) | Dec 10, 2025 |
| 3613 | Cow Relays | 39%(4699/11966) | May 29, 2026 |
| 3685 | Matrix | 31%(4849/15175) | May 26, 2026 |
| 3621 | Sightseeing Cows | 33%(4893/14782) | Apr 1, 2026 |
| 3672 | Long Distance Racing | 53%(4942/9293) | Apr 4, 2026 |
| 3662 | Telephone Lines | 34%(5007/14361) | May 5, 2026 |
| 3627 | Bookshelf | 49%(5113/10358) | Apr 4, 2026 |
| 3683 | Priest John's Busiest Day | 33%(5159/15417) | May 22, 2026 |
| 3632 | Optimal Parking | 60%(5193/8648) | Apr 4, 2026 |
| 3620 | Avoid The Lakes | 51%(5426/10577) | May 22, 2026 |
| 3678 | Katu Puzzle | 35%(5446/15137) | May 1, 2026 |
| 3650 | The Seven Percent Solution | 66%(5552/8314) | Apr 5, 2026 |
| 3687 | Labeling Balls | 28%(5942/20576) | May 12, 2026 |
| 3635 | Full Tank? | 36%(6294/17087) | Jun 3, 2026 |
| 3628 | Bookshelf 2 | 44%(6307/14185) | May 14, 2026 |
| 3664 | Election Time | 49%(6372/12806) | May 17, 2026 |
| 3694 | Network | 34%(6520/18809) | May 26, 2026 |
| 3614 | Sunscreen | 35%(6691/18857) | May 16, 2026 |
| 3663 | Costume Party | 39%(6914/17716) | Apr 4, 2026 |
| 3666 | Making the Grade | 45%(7704/17033) | May 27, 2026 |
| 3641 | Pseudoprime numbers | 42%(7894/18364) | May 9, 2026 |
| 3673 | Cow Multiplication | 68%(10138/14707) | Apr 4, 2026 |
| 3669 | Meteor Shower | 25%(10384/40838) | May 21, 2026 |
| 3667 | Hotel | 43%(11315/26132) | May 10, 2026 |
| 3616 | Milking Time | 45%(12436/27106) | Jun 4, 2026 |
| 3630 | Phone List | 25%(13813/53283) | May 30, 2026 |
| 3617 | Best Cow Line | 24%(16098/64975) | May 20, 2026 |
| 3660 | Cow Contest | 55%(16151/28910) | May 6, 2026 |
| 3624 | Charm Bracelet | 42%(33038/78544) | Jun 4, 2026 |
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