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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 |
| 3810 | Hobby on Rails | 16%(8/49) | Oct 1, 2021 |
| 3885 | Escape from the Minefield | 17%(12/68) | Apr 18, 2024 |
| 3806 | Origami Through-Hole | 22%(17/77) | Sep 2, 2025 |
| 3877 | Genetics | 30%(17/56) | Aug 31, 2021 |
| 3880 | Routing | 32%(23/70) | May 12, 2023 |
| 3828 | Zombies VS Plants | 16%(24/150) | Jun 14, 2021 |
| 3833 | Hamlet's gambling | 16%(26/162) | Jul 24, 2021 |
| 3822 | Cover Up | 21%(27/127) | May 6, 2025 |
| 3884 | Gearbox | 9%(30/301) | Oct 26, 2024 |
| 3826 | Trip the Lights Fantastic | 18%(32/174) | Aug 28, 2025 |
| 3861 | Royal Gems | 11%(33/276) | Sep 26, 2024 |
| 3807 | Chemist’s Math | 31%(36/115) | Nov 21, 2022 |
| 3872 | K-equivalence | 15%(39/251) | Nov 14, 2024 |
| 3857 | Solar Eclipse | 25%(40/159) | Sep 2, 2025 |
| 3851 | Wormholes | 11%(44/390) | Sep 6, 2025 |
| 3876 | Darts | 33%(46/138) | Sep 6, 2025 |
| 3883 | Penguin Bashing | 29%(47/159) | Sep 6, 2025 |
| 3825 | Here's a Product Which Will Make You Tensor | 15%(48/305) | Sep 1, 2025 |
| 3879 | Slalom | 18%(50/276) | Dec 11, 2022 |
| 3871 | Java Certification | 18%(51/272) | Sep 1, 2025 |
| 3887 | The Pharaoh's Curse | 16%(52/310) | Sep 4, 2025 |
| 3843 | Common Subexpression Elimination | 8%(55/668) | Dec 24, 2024 |
| 3890 | No Smoking, Please | 19%(56/293) | Oct 29, 2024 |
| 3812 | Block Game | 10%(57/539) | Sep 23, 2025 |
| 3823 | Decompressing in a GIF | 27%(57/211) | Mar 11, 2025 |
| 3830 | Ancient vending machine | 29%(60/202) | Sep 5, 2025 |
| 3816 | Pool Table | 13%(61/443) | May 7, 2025 |
| 3834 | Graph Game | 18%(62/337) | Nov 21, 2024 |
| 3896 | Multiprocessor Scheduling | 41%(62/148) | Sep 1, 2025 |
| 3848 | Room Assignments | 30%(64/208) | Sep 1, 2025 |
| 3888 | Dimensional Warp Drive | 33%(65/196) | Nov 9, 2024 |
| 3804 | Swimming Jam | 38%(67/173) | Jul 22, 2024 |
| 3858 | Hurry Plotter | 44%(68/152) | Sep 6, 2025 |
| 3866 | Exclusive Access 2 | 43%(78/180) | Jun 18, 2023 |
| 3859 | ACM Coalition | 21%(78/358) | Jul 30, 2024 |
| 3868 | Garbling Game | 22%(79/356) | Sep 8, 2025 |
| 3811 | Infected Land | 22%(85/385) | Apr 18, 2025 |
| 3824 | Flipper | 44%(102/230) | Mar 5, 2025 |
| 3867 | Funny Language | 29%(105/355) | Sep 2, 2025 |
| 3875 | Lights | 37%(105/279) | Sep 1, 2025 |
| 3860 | Fruit Weights | 28%(105/373) | Sep 2, 2025 |
| 3819 | Coverage | 21%(106/493) | Sep 6, 2025 |
| 3836 | P2P File Sharing System | 41%(113/274) | Sep 6, 2025 |
| 3854 | Another Brick in the Wall | 50%(123/242) | Jul 20, 2021 |
| 3899 | The Lucky Numbers | 28%(125/432) | Jun 6, 2023 |
| 3818 | Mosaic | 30%(125/406) | Sep 26, 2025 |
| 3827 | Facer is learning to swim | 28%(127/441) | Sep 2, 2025 |
| 3898 | Software Industry Revolution | 27%(130/466) | Sep 2, 2025 |
| 3874 | Working at the Restaurant | 36%(132/357) | Sep 2, 2025 |
| 3809 | Twenty Questions | 40%(142/353) | Sep 2, 2025 |
| 3821 | Clickomania | 23%(142/607) | Jul 29, 2024 |
| 3808 | Malfatti Circles | 45%(149/326) | Dec 21, 2024 |
| 3846 | Mountain Road | 37%(155/413) | Sep 3, 2025 |
| 3829 | Seat taking up is tough | 34%(169/486) | Sep 1, 2025 |
| 3892 | RSA Factorization | 26%(176/669) | Jan 20, 2024 |
| 3870 | Inspection | 23%(178/768) | Jul 29, 2024 |
| 3855 | Blast the Enemy! | 55%(179/324) | Sep 6, 2025 |
| 3886 | Baby's Blocks | 46%(180/389) | Sep 5, 2025 |
| 3849 | Settlers of Catan | 49%(186/377) | Jul 20, 2024 |
| 3881 | Happy Telephones | 59%(186/312) | Sep 5, 2025 |
| 3853 | Painting | 21%(196/924) | Sep 6, 2025 |
| 3813 | Euclid | 25%(197/771) | Sep 11, 2025 |
| 3845 | Fractal | 38%(197/517) | Sep 6, 2025 |
| 3893 | Hard-working Student | 33%(208/624) | Sep 1, 2025 |
| 3878 | Haunted Graveyard | 17%(218/1215) | Sep 1, 2025 |
| 3805 | Separate Points | 38%(222/581) | Sep 12, 2025 |
| 3856 | deltree | 62%(222/353) | Sep 1, 2025 |
| 3847 | Moving to Nuremberg | 25%(224/869) | Sep 8, 2025 |
| 3831 | Open-air shopping malls | 32%(228/702) | Sep 2, 2025 |
| 3850 | Simple Polygon | 29%(232/790) | Sep 1, 2025 |
| 3815 | The Ninja Way | 26%(235/887) | Sep 16, 2025 |
| 3873 | Trick or Treat | 23%(241/1008) | Sep 1, 2025 |
| 3862 | Asteroids | 35%(245/695) | Oct 30, 2022 |
| 3814 | Museum Guards | 20%(255/1221) | Sep 2, 2025 |
| 3803 | Repeated Substitution with Sed | 42%(263/622) | Sep 1, 2025 |
| 3835 | Columbus's bargain | 28%(264/926) | Sep 6, 2025 |
| 3832 | Posters | 24%(279/1159) | Sep 20, 2025 |
| 3894 | System Engineer | 39%(285/725) | Oct 31, 2024 |
| 3820 | XML | 24%(286/1154) | Jun 21, 2023 |
| 3817 | Robot Challenge | 32%(299/929) | Sep 8, 2025 |
| 3865 | Database | 16%(308/1839) | Jul 18, 2024 |
| 3802 | Cubist Artwork | 64%(402/621) | Mar 5, 2025 |
| 3869 | Headshot | 49%(410/830) | Sep 2, 2025 |
| 3897 | Maze Stretching | 23%(418/1748) | Sep 6, 2025 |
| 3882 | Stammering Aliens | 22%(442/1967) | Sep 15, 2025 |
| 3852 | String LD | 51%(673/1317) | Sep 1, 2025 |
| 3842 | An Industrial Spy | 39%(754/1933) | Jan 1, 2025 |
| 3801 | Crazy Circuits | 82%(846/1031) | Sep 2, 2025 |
| 3863 | Business Center | 38%(897/2328) | Sep 3, 2025 |
| 3895 | Cycles of Lanes | 35%(929/2582) | Sep 5, 2025 |
| 3844 | Divisible Subsequences | 33%(1093/3248) | Sep 11, 2025 |
| 3889 | Fractal Streets | 25%(1518/6070) | Sep 26, 2025 |
| 3800 | Repair Depots | 74%(1808/2417) | May 12, 2025 |
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