| 1800 | Flying to the Mars | 30.80%(9988/32429) |
| 1801 | Annoying painting tool | 67.20%(422/628) |
| 1802 | Black and white painting | 56.99%(367/644) |
| 1803 | Cylinder | 41.45%(281/678) |
| 1804 | Deli Deli | 53.98%(1565/2899) |
| 1805 | Expressions | 44.20%(301/681) |
| 1806 | Frequent values | 36.68%(1075/2931) |
| 1807 | Grocery store | 3.78%(17/450) |
| 1808 | Halloween treats | 39.66%(993/2504) |
| 1809 | A New Tetris Game(2) | 37.98%(474/1248) |
| 1810 | Rating of Tetris | 18.13%(165/910) |
| 1811 | Rank of Tetris | 28.38%(5178/18247) |
| 1812 | Count the Tetris | 26.94%(1084/4024) |
| 1813 | Escape from Tetris | 28.55%(621/2175) |
| 1814 | Peaceful Commission | 30.06%(2666/8870) |
| 1815 | Building roads | 31.25%(818/2618) |
| 1816 | Get Luffy Out * | 42.61%(663/1556) |
| 1817 | Necklace of Beads | 36.10%(548/1518) |
| 1818 | It's not a Bug, It's a Feature! | 55.97%(239/427) |
| 1819 | Bishops | 10.20%(31/304) |
| 1820 | Little Bishops | 41.61%(171/411) |
| 1821 | Get The Treasure | 5.02%(12/239) |
| 1822 | Earn more money | 38.49%(117/304) |
| 1823 | Luck and Love | 26.33%(2901/11018) |
| 1824 | Let's go home | 42.30%(1548/3660) |
| 1825 | Work, work | 10.00%(40/400) |
| 1826 | Happy Birthday | 15.15%(60/396) |
| 1827 | Summer Holiday | 40.59%(3371/8305) |
| 1828 | Picture | 43.01%(4179/9716) |
| 1829 | A Bug's Life | 31.54%(8063/25563) |
| 1836 | Another Convex Polygon Problem | 11.98%(69/576) |
| 1837 | Breweries | 4.82%(17/353) |
| 1838 | Chessboard | 34.26%(284/829) |
| 1839 | Delay Constrained Maximum Capacity Path | 34.97%(1201/3434) |
| 1840 | Equations | 43.22%(957/2214) |
| 1841 | Find the Shortest Common Superstring | 27.37%(756/2762) |
| 1842 | Gorilla.bas | 9.22%(38/412) |
| 1843 | Horizontal and Vertical Rays | 32.12%(124/386) |
| 1844 | Intermediate Rounds for Multicasting | 8.25%(17/206) |
| 1845 | Jimmy’s Assignment | 37.79%(1184/3133) |
| 1846 | Brave Game | 68.83%(16958/24639) |
| 1847 | Good Luck in CET-4 Everybody! | 61.85%(13750/22230) |
| 1848 | Fibonacci again and again | 44.68%(8543/19119) |
| 1849 | Rabbit and Grass | 76.45%(5071/6633) |
| 1850 | Being a Good Boy in Spring Festival | 60.43%(8700/14398) |
| 1851 | A Simple Game | 63.62%(1413/2221) |
| 1852 | Beijing 2008 | 43.56%(737/1692) |
| 1853 | Cyclic Tour | 51.68%(1982/3835) |
| 1854 | Q-Sequence | 44.12%(390/884) |
| 1855 | Expressions | 8.02%(21/262) |
| 1856 | More is better | 34.10%(16864/49459) |
| 1857 | Word Puzzle | 26.21%(255/973) |
| 1858 | Max Partial Value I | 40.80%(461/1130) |
| 1859 | 最小长方形 | 52.95%(7691/14526) |
| 1860 | 统计字符 | 59.07%(11185/18936) |
| 1861 | 游船出租 | 35.07%(3675/10479) |
| 1862 | EXCEL排序 | 32.89%(11753/35739) |
| 1863 | 畅通工程 | 44.64%(25062/56139) |
| 1864 | 最大报销额 | 31.27%(13676/43730) |
| 1865 | 1sting | 39.21%(3250/8288) |
| 1866 | A + B forever! | 27.22%(439/1613) |
| 1867 | A + B for you again | 24.99%(2817/11271) |
| 1868 | Consecutive sum | 47.41%(870/1835) |
| 1869 | 六度分离 | 39.47%(7944/20126) |
| 1870 | 愚人节的礼物 | 56.09%(12530/22340) |
| 1871 | 无题 | 44.10%(2251/5104) |
| 1872 | 稳定排序 | 36.69%(4760/12974) |
| 1873 | 看病要排队 | 40.96%(13734/33529) |
| 1874 | 畅通工程续 | 38.40%(38907/101323) |
| 1875 | 畅通工程再续 | 34.93%(20112/57572) |
| 1876 | 机器人系列2 | 24.28%(380/1565) |
| 1877 | 又一版 A+B | 38.91%(9317/23946) |
| 1878 | 欧拉回路 | 38.54%(9902/25694) |
| 1879 | 继续畅通工程 | 40.97%(16107/39313) |
| 1880 | 魔咒词典 | 24.29%(6159/25356) |
| 1881 | 毕业bg | 37.43%(2392/6391) |
| 1882 | Strange Billboard | 43.83%(455/1038) |
| 1883 | Phone Cell | 35.76%(290/811) |
| 1884 | Hexagonal Parcels | 32.21%(67/208) |
| 1885 | Key Task | 42.56%(1351/3174) |
| 1886 | Gates of Logic | 12.39%(59/476) |
| 1887 | Weird Numbers | 31.90%(200/627) |
| 1888 | Rectangular Polygons | 34.23%(140/409) |
| 1889 | Reaux! Sham! Beaux! | 29.61%(180/608) |
| 1890 | Robotic Sort | 43.46%(3154/7258) |
| 1891 | Tough Water Level | 6.67%(10/150) |
| 1892 | See you~ | 30.50%(2706/8871) |
| 1893 | Sibonacci Numbers | 34.93%(372/1065) |
| 1894 | String Compare | 27.25%(992/3640) |
| 1895 | Sum Zero | 28.22%(351/1244) |
| 1896 | Stones | 65.61%(4525/6897) |
| 1897 | SnowWolf's Wine Shop | 34.44%(218/633) |
| 1898 | Sempr == The Best Problem Solver? | 65.92%(1836/2785) |
| 1899 | Sum the K-th's | 17.05%(66/387) |
