| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 973 | P1596 [USACO10OCT] Lake Counting S | 22 / 54 | 5 | |
| 1107 | P3205 [HNOI2010] 合唱队 | 1 / 2 | 10 | |
| 908 | P8072 [COCI2009-2010#7] COKOLADA | 36 / 154 | 7 |
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