| 7891 | Logo | 1/1 | |
| 7892 | Cranes | 1/1 | |
| 7893 | WiFi | 1/1 | |
| 7894 | Exact Change | 1/1 | |
| 7895 | Dominos 2 | 1/1 | |
| 7896 | Logo 2 | 1/1 | |
| 7897 | Tic Tac Toe | 1/1 | |
| 7898 | Nice Prefixes | 1/1 | |
| 7899 | Convex Hull | 1/1 | |
| 7900 | Slalom | 1/1 | |
| 7901 | 输出N以内的素数 nprime [1*+] | 2/2 | |
| 7902 | Moveable maze | 1/1 | |
| 7903 | Pick up sticks | 1/1 | |
| 7904 | Digits | 1/1 | |
| 7905 | Rotate to root | 1/1 | |
| 7906 | Pipes | 1/1 | |
| 7907 | Cantor | 1/1 | |
| 7908 | Problem A: Egypt | 2/2 | |
| 7909 | Problem A: Bridges and Tunnels | 1/1 | |
| 7910 | Problem B: Octagons | 1/1 | |
| 7911 | Problem D: Numbersrebmun | 1/1 | |
| 7912 | Treasure Hunt | 1/1 | |
| 7913 | Art | 1/1 | |
| 7914 | KFC的长队-Z*W | 2/3 | |
| 7915 | 桐桐的计算 | 2/3 | |
| 7916 | 打印算式(suanshi) | 1/2 | |
| 7917 | 找数游戏(find) | 1/2 | |
| 7918 | 桐桐的砝码 | 2/3 | |
| 7919 | 蜜蜂路线(bee) | 2/3 | |
| 7920 | 取数游戏 | 2/3 | |
| 7921 | 木材加工 | 0/1 | |
| 7922 | 面包 | 1/1 | |
| 7923 | 排序工作量 | 2/2 | |
| 7924 | 爆炸 | 1/1 | |
| 7925 | 最小生成树 | 1/1 | |
| 7926 | 循环节 | 1/1 | |
| 7927 | Graduates' Leaving | 1/1 | |
| 7928 | Card Game | 2/2 | |
| 7929 | Total Area | 1/1 | |
| 7930 | Election | 2/2 | |
| 7931 | Circle and triangle | 1/1 | |
| 7932 | Rightmost non-zero Digit in N! | 1/1 | |
| 7933 | Stones on the Table | 3/3 | |
| 7934 | Guess one number | 3/3 | |
| 7935 | 树状数组 | 0/1 | |
| 7936 | 多项式 | 0/1 | |
| 7937 | 字符串_1 | 0/1 | |
| 7938 | 可乐 | 1/1 | |
| 7939 | 异或和 | 0/1 | |
| 7940 | 城市 | 0/1 | |