| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 90 | 90 [R15F]树上炸弹 | 53 / 429 | 8 | |
| 101 | 101 [R17E]线路架设 | 25 / 438 | 9 | |
| 120 | 120 [R20F]构图判树 | 53 / 859 | 8 | |
| 135 | 135 [R22G]双路径极值差 | 8 / 223 | 9 | |
| 147 | 147 [R24F]炮台防御 | 13 / 327 | 9 | |
| 153 | 153 [R25F]树上选链 | 14 / 367 | 10 | |
| 158 | 158 [R26E]树上三元组 | 127 / 532 | 7 | |
| 171 | 171 [R28D]树上路径 | 143 / 1104 | 8 | |
| 195 | 195 [R32D]还原树 | 123 / 453 | 6 | |
| 196 | 196 [R32E]回文串 | 54 / 369 | 8 | |
| 203 | 203 [R33F]最大边权 | 21 / 105 | 7 | |
| 221 | 221 [R36F]运输线路 | 17 / 197 | 9 | |
| 254 | 254 [R41E]颜色题 | 18 / 98 | 8 | |
| 389 | 389 [R62E]树 | 67 / 321 | 7 |
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