| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 158 | patadv1066 AVL 树的根 | 1 / 2 | 4 | |
| 242 | pattop1029 数列切分 | 1 / 1 | 4 | |
| 502 | sjtu20141A 全排列 | 1 / 1 | 2 | |
| 503 | sjtu20141B 字符串重排 | 1 / 4 | 3 | |
| 504 | sjtu20141C 矩阵分组 | 1 / 1 | 4 |
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