| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 368 | P2827 [NOIP2016 提高组] 蚯蚓 | 6 / 19 | 8 | |
| 430 | P3146 [USACO16OPEN] 248 G | 4 / 19 | 9 | |
| 252 | P3405 [USACO16DEC] Cities and States S | 11 / 80 | 8 | 
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