| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 28 | 28 [USACO10OCT] Dinner Time S | 1 / 6 | 6 | |
| 30 | P1111 修复公路 | 13 / 34 | 5 | |
| 20 | P1223 排队接水 | 27 / 63 | 3 | |
| 8 | P1296 奶牛的耳语 | 10 / 34 | 3 | |
| 21 | P1803 凌乱的yyy / 线段覆盖 | 23 / 44 | 3 | |
| 27 | P2994 [USACO10OCT] Dinner Time S | 1 / 2 | 6 | |
| 25 | P3173 [HAOI2009] 巧克力 | 1 / 1 | 6 |