| 1800 | Decoding Morse Sequences | 0.00%(0/4) |
| 1801 | Fill the Cisterns! | 20.00%(1/5) |
| 1802 | Horizontally Visible Segments | 50.00%(3/6) |
| 1803 | 2D-Nim | 30.00%(6/20) |
| 1804 | (Your)((Term)((Project))) | 42.86%(12/28) |
| 1805 | Crossed Matchings | 66.67%(6/9) |
| 1806 | Counting Rectangles | 66.67%(4/6) |
| 1807 | Pattern Matching Using Regular Expression | 0.00%(0/2) |
| 1808 | The Partition of a Cake | 0.00%(0/2) |
| 1809 | Team Them Up! | 3.33%(1/30) |
| 1810 | Brackets Sequence | 25.00%(3/12) |
| 1811 | Slots of Fun | 60.00%(6/10) |
| 1812 | Left labyrinths | 20.00%(1/5) |
| 1813 | Family | 0.00%(0/4) |
| 1814 | This Sentence is False | 42.11%(8/19) |
| 1815 | Vasya the Hipster | 70.00%(7/10) |
| 1816 | Luxurious Houses | 46.67%(14/30) |
| 1817 | Developing Skills | 25.00%(4/16) |
| 1818 | Three Logos | 40.00%(2/5) |
| 1819 | Kojiro and Furrari | 33.33%(1/3) |
| 1820 | Zublicanes and Mumocrates | 50.00%(2/4) |
| 1821 | Help Far Away Kingdom | 51.16%(22/43) |
| 1822 | Help Chef Gerasim | 24.34%(83/341) |
| 1823 | Help Victoria the Wise | 0.00%(0/3) |
| 1824 | Help King | 0.00%(0/4) |
| 1825 | Help Greg the Dwarf | 0.00%(0/2) |
| 1826 | Die Roll | 51.92%(27/52) |
| 1827 | 数字分离 | 32.79%(280/854) |
| 1828 | 数字寻找 | 36.60%(359/981) |
| 1829 | Running Student | 15.56%(7/45) |
| 1830 | Hexadecimal's Numbers | 48.57%(17/35) |
| 1831 | Tavas and Nafas | 46.15%(12/26) |
| 1832 | Tavas and SaDDas | 57.89%(11/19) |
| 1833 | Tavas and Karafs | 44.44%(4/9) |
| 1834 | Tavas and Malekas | 16.67%(1/6) |
| 1835 | 第二小数 | 25.00%(126/504) |
| 1836 | The Best Path | 57.14%(4/7) |
| 1837 | 鸡兔同笼 | 75.55%(207/274) |
| 1838 | Bargaining Table | 46.58%(102/219) |
| 1839 | System Administrator | 56.52%(13/23) |
| 1840 | Segments | 57.14%(8/14) |
| 1841 | Scheme | 33.33%(6/18) |
| 1842 | 排序 | 40.25%(729/1811) |
| 1843 | 快速排序 | 25.87%(313/1210) |
| 1844 | Sequence Partitioning | 0.00%(0/3) |
| 1845 | 划分集合(这题很简单) | 19.23%(5/26) |
| 1846 | 分箱子 | 48.00%(12/25) |
| 1847 | 交叉字符串 | 33.94%(318/937) |
| 1848 | 组合的遍历 | 51.92%(135/260) |
| 1849 | 半平面交 | 68.06%(471/692) |
| 1850 | 汉诺塔 | 48.28%(280/580) |
| 1851 | 分治算法 | 50.64%(118/233) |
| 1852 | The Triangle | 39.65%(291/734) |
| 1853 | 矩阵的概念 | 24.10%(134/556) |
| 1854 | 极简压力测试之测试RP | 5.63%(87/1544) |
| 1855 | 真·随机测试 | 1.29%(78/6059) |
| 1856 | EasyString | 25.00%(15/60) |
| 1857 | 货运公司 | 10.45%(21/201) |
| 1858 | 鸡兔同笼 | 59.80%(586/980) |
| 1859 | 素数求和 | 53.46%(487/911) |
| 1860 | 找@坐标 | 43.69%(128/293) |
| 1861 | 加减乘除 | 40.15%(110/274) |
| 1862 | 奇怪数列 | 54.92%(435/792) |
| 1863 | 韩信点兵 | 38.93%(95/244) |
| 1864 | Hero | 22.06%(214/970) |
| 1865 | 瑶瑶的第K大 | 11.82%(105/888) |
| 1866 | N除8 | 27.12%(160/590) |
| 1867 | 战斗力总和 | 26.72%(105/393) |
| 1868 | 找出单身狗 | 41.40%(154/372) |
| 1869 | Winter is coming | 22.22%(102/459) |
| 1870 | 对称数 | 41.58%(121/291) |
| 1871 | 获取敌情 | 33.36%(405/1214) |
| 1872 | 判断等式 | 16.82%(18/107) |
| 1873 | 秘密信件 | 28.95%(22/76) |
| 1874 | 自上而下 | 22.16%(76/343) |
| 1875 | 课程安排 | 14.29%(7/49) |
| 1876 | wifi信号 | 19.32%(40/207) |
| 1877 | 跑车竞速比赛 | 19.46%(294/1511) |
| 1878 | 宝石游戏 | 16.28%(35/215) |
| 1879 | 井底蛙 | 42.96%(116/270) |
| 1880 | 工院好声音 | 33.62%(119/354) |
| 1881 | 找一找 | 31.41%(60/191) |
| 1882 | LCM Challenge | 43.33%(26/60) |
| 1883 | 等差数列 | 41.46%(461/1112) |
| 1884 | 区间涂色 | 18.18%(2/11) |
| 1885 | 宝箱 | 42.17%(35/83) |
| 1886 | 找规律 | 39.29%(22/56) |
| 1887 | Taxes | 53.33%(16/30) |
| 1888 | 峡谷 | 26.67%(4/15) |
| 1889 | 项链 | 46.15%(12/26) |
| 1890 | Hang说这题是傻逼签到 | 38.74%(43/111) |
| 1891 | 外传：hsy的脂肪肝 | 16.23%(37/228) |
| 1892 | 最长公共前缀 | 39.47%(15/38) |
| 1893 | 最大公约数 | 8.00%(2/25) |
| 1894 | 翻页系统 | 36.26%(33/91) |
| 1895 | 判重系统 | 15.15%(5/33) |
| 1896 | 排名系统 | 17.14%(12/70) |
| 1897 | 挑战模式 | 13.04%(6/46) |
| 1898 | Primes on Interval | 27.80%(67/241) |
| 1899 | Largest Rectangle in a Histogram | 29.49%(69/234) |