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| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 86 | P1086 没有上司的舞会 | 10 / 308 | 5 | |
| 87 | P1087 最大子树和 | 7 / 136 | 5 | |
| 89 | P1089 染色树 | 10 / 117 | 5 | |
| 93 | P1093 维修路段 | 6 / 49 | 6 | |
| 408 | P1408 最大黑色节点 | 1 / 38 | 6 | |
| 969 | P1969 搬运货物 | 1 / 10 | 8 |
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