| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 774 | USACO2240 困牛放牧 | 3 / 9 | 10 | |
| 775 | USACO2241 大型植被恢复 | 3 / 5 | 10 | |
| 776 | USACO2242 流量交通 | 3 / 5 | 10 | |
| 777 | USACO2243 困牛放牧 | 2 / 6 | 10 | |
| 778 | USACO2244 谷仓刷漆 | 2 / 9 | 10 | |
| 779 | USACO2245 大型植被恢复 | 2 / 6 | 10 | |
| 2923 | USACO2246 牛乐园 | 2 / 4 | 7 | |
| 2924 | USACO2247 洗盘子 | 2 / 2 | 7 | |
| 2925 | USACO2248 谷仓刷漆 | 2 / 3 | 7 |