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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 |
| 3689 | Equations | 9%(147/1556) | Sep 8, 2025 |
| 3677 | Chemical Weighing | 15%(94/607) | Nov 25, 2025 |
| 3607 | Distribution of Toys | 16%(206/1246) | Oct 23, 2025 |
| 3676 | Tomorrow Genius 2008 | 16%(18/106) | Oct 20, 2025 |
| 3642 | Carpool | 19%(176/910) | Nov 20, 2025 |
| 3690 | Constellations | 20%(1643/7958) | Nov 25, 2025 |
| 3674 | Super Assassin | 22%(564/2558) | Oct 23, 2025 |
| 3647 | Tournament | 22%(170/760) | Sep 5, 2025 |
| 3651 | Slink | 23%(27/113) | Oct 21, 2025 |
| 3603 | Zen Puzzle Garden | 24%(75/306) | Oct 20, 2025 |
| 3696 | The Luckiest number | 24%(3131/12726) | Oct 19, 2025 |
| 3610 | Maclaurin Series of Reciprocals | 24%(64/260) | Nov 12, 2025 |
| 3617 | Best Cow Line | 24%(16063/64878) | Nov 23, 2025 |
| 3604 | Professor Ben | 25%(2361/9287) | Nov 25, 2025 |
| 3669 | Meteor Shower | 25%(10376/40799) | Nov 25, 2025 |
| 3630 | Phone List | 25%(13775/53143) | Nov 21, 2025 |
| 3645 | Smeech | 26%(717/2752) | Nov 25, 2025 |
| 3657 | Haybale Guessing | 26%(780/2951) | Oct 19, 2025 |
| 3625 | Building Roads | 26%(3913/14497) | Nov 25, 2025 |
| 3675 | Telescope | 27%(1275/4701) | Oct 30, 2025 |
| 3640 | Conformity | 27%(1092/4010) | Nov 20, 2025 |
| 3636 | Nested Dolls | 27%(2537/9193) | Nov 20, 2025 |
| 3643 | Friend or Foe? | 28%(307/1081) | Nov 25, 2025 |
| 3608 | Bridge Across Islands | 28%(4204/14716) | Nov 25, 2025 |
| 3687 | Labeling Balls | 28%(5928/20546) | Nov 25, 2025 |
| 3679 | The Delivery of Control | 29%(74/254) | Oct 19, 2025 |
| 3699 | miniSQL | 29%(748/2510) | Oct 19, 2025 |
| 3695 | Rectangles | 30%(1311/4355) | Nov 25, 2025 |
| 3648 | Wedding | 30%(4317/14335) | Oct 21, 2025 |
| 3681 | Finding the Rectangle | 30%(1031/3407) | Nov 25, 2025 |
| 3693 | Maximum repetition substring | 30%(4484/14793) | Oct 21, 2025 |
| 3697 | USTC campus network | 30%(1599/5243) | Nov 25, 2025 |
| 3601 | Tower of Hanoi | 30%(781/2553) | Oct 18, 2025 |
| 3644 | Gangs | 31%(152/485) | Oct 18, 2025 |
| 3685 | Matrix | 31%(4824/15110) | Nov 25, 2025 |
| 3629 | Card Stacking | 32%(3019/9305) | Nov 17, 2025 |
| 3682 | King Arthur's Birthday Celebration | 32%(1508/4605) | Nov 20, 2025 |
| 3621 | Sightseeing Cows | 33%(4891/14769) | Nov 25, 2025 |
| 3631 | Cuckoo Hashing | 33%(445/1341) | Nov 25, 2025 |
| 3683 | Priest John's Busiest Day | 33%(5142/15345) | Nov 25, 2025 |
| 3623 | Best Cow Line, Gold | 33%(2355/7018) | Nov 25, 2025 |
| 3634 | Circle of Debt | 33%(113/333) | Nov 25, 2025 |
| 3612 | Telephone Wire | 34%(1338/3896) | Nov 25, 2025 |
| 3633 | Copying DNA | 34%(315/913) | Oct 19, 2025 |
| 3611 | Minimum Weighted Perfect Fractional b-Matching | 34%(48/139) | Nov 25, 2025 |
| 3694 | Network | 34%(6508/18762) | Nov 25, 2025 |
| 3662 | Telephone Lines | 34%(4996/14339) | Nov 25, 2025 |
| 3659 | Cell Phone Network | 34%(3430/9839) | Nov 25, 2025 |
| 3639 | Exchange Rates | 34%(981/2806) | Nov 25, 2025 |
| 3614 | Sunscreen | 35%(6680/18830) | Nov 25, 2025 |
| 3658 | Artificial Lake | 35%(866/2438) | Oct 23, 2025 |
| 3684 | Physics Experiment | 35%(1885/5263) | Nov 25, 2025 |
| 3622 | Gourmet Grazers | 35%(1026/2858) | Nov 25, 2025 |
| 3678 | Katu Puzzle | 35%(5442/15129) | Nov 20, 2025 |
| 3609 | Reset Sequence | 36%(368/1008) | Nov 25, 2025 |
| 3665 | iCow | 36%(2563/7018) | Nov 25, 2025 |
| 3635 | Full Tank? | 36%(6280/17054) | Nov 20, 2025 |
| 3661 | Running | 37%(3330/8948) | Nov 25, 2025 |
| 3668 | Game of Lines | 37%(2825/7501) | Nov 20, 2025 |
| 3655 | Guard | 37%(101/268) | Oct 21, 2025 |
| 3600 | Subimage Recognition | 38%(1266/3329) | Nov 25, 2025 |
| 3663 | Costume Party | 39%(6902/17694) | Nov 25, 2025 |
| 3688 | Cheat in the Game | 39%(679/1739) | Nov 15, 2025 |
| 3613 | Cow Relays | 39%(4660/11855) | Nov 25, 2025 |
| 3686 | The Windy's | 39%(2962/7419) | Oct 23, 2025 |
| 3656 | Rock Skipping | 40%(725/1776) | Nov 25, 2025 |
| 3671 | Dining Cows | 40%(3855/9423) | Nov 25, 2025 |
| 3649 | Typesetting | 41%(258/627) | Oct 19, 2025 |
| 3606 | Sheryl's Circuit II | 41%(222/535) | Nov 12, 2025 |
| 3624 | Charm Bracelet | 41%(32355/77630) | Nov 20, 2025 |
| 3605 | Sheryl's Circuit I | 41%(524/1255) | Oct 23, 2025 |
| 3615 | Cow Hurdles | 42%(4494/10582) | Nov 20, 2025 |
| 3653 | Here We Go(relians) Again | 42%(737/1728) | Sep 2, 2025 |
| 3638 | Moogle | 42%(611/1425) | Nov 25, 2025 |
| 3641 | Pseudoprime numbers | 42%(7866/18324) | Nov 25, 2025 |
| 3680 | Intervals | 43%(4538/10520) | Nov 25, 2025 |
| 3667 | Hotel | 43%(11273/26015) | Nov 25, 2025 |
| 3602 | Typographical Ligatures | 43%(580/1329) | Oct 19, 2025 |
| 3628 | Bookshelf 2 | 44%(6293/14166) | Nov 20, 2025 |
| 3691 | DNA repair | 45%(3940/8742) | Nov 25, 2025 |
| 3666 | Making the Grade | 45%(7680/16939) | Nov 25, 2025 |
| 3616 | Milking Time | 45%(12248/26860) | Nov 25, 2025 |
| 3619 | Speed Reading | 46%(4695/10000) | Nov 25, 2025 |
| 3646 | The Dragon of Loowater | 47%(2312/4873) | Nov 24, 2025 |
| 3692 | Kindergarten | 47%(4509/9496) | Nov 20, 2025 |
| 3618 | Exploration | 47%(2452/5121) | Nov 20, 2025 |
| 3670 | Eating Together | 48%(3880/8039) | Nov 20, 2025 |
| 3664 | Election Time | 48%(6120/12533) | Nov 20, 2025 |
| 3627 | Bookshelf | 49%(5096/10332) | Nov 25, 2025 |
| 3620 | Avoid The Lakes | 51%(5417/10562) | Nov 20, 2025 |
| 3672 | Long Distance Racing | 53%(4937/9281) | Nov 25, 2025 |
| 3626 | Mud Puddles | 55%(2105/3821) | Nov 20, 2025 |
| 3660 | Cow Contest | 55%(16127/28878) | Nov 25, 2025 |
| 3652 | Persistent Bits | 56%(1638/2876) | Nov 20, 2025 |
| 3637 | Shopaholic | 57%(3190/5559) | Nov 25, 2025 |
| 3654 | Electronic Document Security | 59%(686/1160) | Nov 25, 2025 |
| 3632 | Optimal Parking | 60%(5184/8639) | Nov 20, 2025 |
| 3650 | The Seven Percent Solution | 66%(5546/8303) | Nov 20, 2025 |
| 3673 | Cow Multiplication | 68%(10119/14686) | Nov 25, 2025 |
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