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| ID | Title | Ratio(AC/submit) | Date |
| 1820 | Expression | 1%(27/2389) | Mar 5, 2026 |
| 1892 | VTAS - Vessel Traffic Advisory Service | 1%(4/338) | Dec 9, 2025 |
| 1871 | Bullet Hole | 6%(25/405) | Dec 9, 2025 |
| 1814 | Polynomial | 6%(29/441) | Dec 9, 2025 |
| 1884 | Train Time | 8%(45/502) | Dec 9, 2025 |
| 1883 | Theseus and the Minotaur | 9%(29/307) | Dec 9, 2025 |
| 1889 | Package Pricing | 11%(62/555) | Jan 6, 2026 |
| 1891 | Typesetting | 11%(41/360) | Dec 9, 2025 |
| 1864 | Funny Card Game | 11%(21/182) | Dec 1, 2025 |
| 1863 | Subnumber | 11%(130/1115) | Mar 5, 2026 |
| 1834 | 线段处理 | 12%(94/758) | Nov 21, 2025 |
| 1802 | Ancient Plates | 12%(43/333) | Mar 5, 2026 |
| 1803 | Box Art | 13%(149/1115) | Nov 21, 2025 |
| 1881 | Sail Race | 15%(20/126) | Dec 9, 2025 |
| 1810 | Covering | 16%(169/1054) | Dec 9, 2025 |
| 1841 | Meadow | 16%(106/647) | Mar 5, 2026 |
| 1839 | Cattle | 16%(60/364) | Mar 5, 2026 |
| 1843 | Shire | 16%(25/150) | Dec 1, 2025 |
| 1893 | Monitoring Wheelchair Patients | 17%(81/467) | Dec 9, 2025 |
| 1812 | Zuma Game | 19%(123/625) | Mar 5, 2026 |
| 1875 | Robot | 20%(65/318) | Dec 9, 2025 |
| 1842 | Parking | 20%(46/221) | Mar 5, 2026 |
| 1851 | Map | 21%(167/793) | Jan 7, 2026 |
| 1829 | 火力防御网 | 21%(81/378) | Mar 5, 2026 |
| 1805 | Friends | 21%(174/803) | Mar 4, 2026 |
| 1800 | Magic Trick | 21%(204/936) | Mar 5, 2026 |
| 1898 | Entropy | 21%(221/1008) | Dec 9, 2025 |
| 1825 | Young | 22%(166/735) | Mar 5, 2026 |
| 1801 | Formula Racing | 22%(95/416) | Dec 9, 2025 |
| 1886 | Borrowers | 23%(397/1670) | Dec 9, 2025 |
| 1867 | Treequivalence | 23%(113/474) | Dec 9, 2025 |
| 1845 | Sumdiv | 23%(10549/44113) | Mar 5, 2026 |
| 1853 | Cat | 24%(532/2163) | Jan 8, 2026 |
| 1819 | Disks | 25%(519/2074) | Dec 9, 2025 |
| 1878 | Jill's Bike | 25%(391/1538) | Dec 9, 2025 |
| 1897 | Data Mining | 25%(120/470) | Jan 8, 2026 |
| 1866 | Help! | 25%(117/456) | Nov 21, 2025 |
| 1858 | Interesting Maze Game | 26%(104/400) | Dec 9, 2025 |
| 1846 | System | 26%(114/436) | Mar 5, 2026 |
| 1899 | Farmer Bill's Problem | 26%(684/2604) | Dec 9, 2025 |
| 1807 | Mayan Dates | 26%(46/174) | Mar 5, 2026 |
| 1811 | Prime Test | 27%(12260/45311) | Mar 5, 2026 |
| 1895 | Bring Them There | 27%(301/1096) | Dec 9, 2025 |
| 1873 | The Fortified Forest | 27%(2652/9649) | Mar 5, 2026 |
| 1880 | Variable Radix Huffman Encoding | 27%(284/1025) | Mar 5, 2026 |
| 1816 | Wild Words | 27%(2073/7479) | Mar 5, 2026 |
| 1815 | Friendship | 27%(3563/12768) | Mar 5, 2026 |
| 1874 | Trade on Verweggistan | 27%(607/2174) | Mar 5, 2026 |
| 1813 | Overlapped Shapes | 28%(193/680) | Mar 5, 2026 |
| 1877 | Flooded! | 28%(2502/8805) | Jan 8, 2026 |
| 1824 | TwoFour | 28%(79/277) | Mar 5, 2026 |
| 1876 | The Letter Carrier's Rounds | 29%(128/441) | Dec 9, 2025 |
| 1826 | The Best Farm | 29%(658/2230) | Nov 20, 2025 |
| 1854 | Evil Straw Warts Live | 29%(984/3326) | Mar 5, 2026 |
| 1831 | 不定方程组 | 29%(272/917) | Feb 2, 2026 |
| 1832 | 连环锁 | 31%(471/1473) | Dec 9, 2025 |
| 1836 | Alignment | 31%(7639/23874) | Mar 5, 2026 |
| 1872 | A Dicey Problem | 32%(359/1108) | Dec 9, 2025 |
| 1828 | Monkeys' Pride | 33%(3322/9898) | Mar 5, 2026 |
| 1808 | Quadratic Residues | 33%(687/2026) | Nov 20, 2025 |
| 1821 | Fence | 34%(3413/10024) | Mar 5, 2026 |
| 1857 | To Europe! To Europe! | 34%(495/1452) | Mar 5, 2026 |
| 1882 | Stamps | 34%(594/1742) | Mar 5, 2026 |
| 1885 | Uncompress | 34%(358/1048) | Mar 5, 2026 |
| 1896 | Code Formatting | 34%(554/1617) | Mar 5, 2026 |
| 1855 | Mint | 34%(604/1745) | Mar 5, 2026 |
| 1856 | Sea Battle | 34%(1249/3586) | Mar 5, 2026 |
| 1833 | 排列 | 35%(9774/27801) | Mar 5, 2026 |
| 1848 | Tree | 35%(1636/4613) | Mar 5, 2026 |
| 1852 | Ants | 35%(17406/48860) | Mar 6, 2026 |
| 1822 | Fence2 | 35%(159/443) | Mar 5, 2026 |
| 1838 | Banana | 36%(922/2512) | Mar 5, 2026 |
| 1887 | Testing the CATCHER | 36%(7295/19841) | Mar 5, 2026 |
| 1894 | Alternative Scale of Notation | 37%(842/2255) | Jan 7, 2026 |
| 1847 | Tram | 37%(10183/27065) | Mar 5, 2026 |
| 1869 | Test | 37%(131/345) | Mar 5, 2026 |
| 1809 | Regetni | 38%(760/1998) | Nov 20, 2025 |
| 1859 | The Perfect Symmetry | 38%(569/1488) | Dec 9, 2025 |
| 1860 | Currency Exchange | 39%(23693/60625) | Mar 5, 2026 |
| 1818 | ATP | 39%(398/1011) | Dec 1, 2025 |
| 1827 | A Bunch Of Monsters | 39%(438/1112) | Mar 5, 2026 |
| 1830 | 开关问题 | 40%(5808/14427) | Mar 5, 2026 |
| 1861 | Network | 40%(7990/19791) | Dec 5, 2025 |
| 1835 | 宇航员 | 40%(3756/9218) | Mar 5, 2026 |
| 1888 | Crossword Answers | 41%(625/1506) | Dec 9, 2025 |
| 1870 | Bee Breeding | 42%(797/1886) | Jan 8, 2026 |
| 1862 | Stripies | 42%(12670/29966) | Mar 5, 2026 |
| 1865 | Practice | 42%(87/205) | Mar 5, 2026 |
| 1823 | Hotel | 42%(1421/3317) | Mar 5, 2026 |
| 1817 | Traffic Jam | 45%(173/383) | Dec 9, 2025 |
| 1806 | Manhattan 2025 | 45%(1255/2775) | Mar 5, 2026 |
| 1840 | Eqs | 47%(9820/20717) | Mar 2, 2026 |
| 1804 | Brainman | 47%(8983/18945) | Mar 5, 2026 |
| 1850 | Code | 48%(5925/12238) | Mar 5, 2026 |
| 1868 | Antiarithmetic? | 49%(750/1502) | Mar 5, 2026 |
| 1890 | Switching Channels | 50%(254/503) | Dec 1, 2025 |
| 1849 | Two | 52%(1966/3772) | Mar 5, 2026 |
| 1879 | Tempus et mobilius Time and motion | 58%(553/949) | Dec 9, 2025 |
| 1837 | Balance | 62%(13586/21898) | Mar 5, 2026 |
| 1844 | Sum | 65%(7528/11509) | Mar 5, 2026 |
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