| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 90 | 90 [R15F]树上炸弹 | 49 / 409 | 8 | |
| 101 | 101 [R17E]线路架设 | 17 / 254 | 9 | |
| 120 | 120 [R20F]构图判树 | 48 / 744 | 8 | |
| 135 | 135 [R22G]双路径极值差 | 6 / 212 | 9 | |
| 147 | 147 [R24F]炮台防御 | 7 / 206 | 10 | |
| 153 | 153 [R25F]树上选链 | 11 / 356 | 10 | |
| 158 | 158 [R26E]树上三元组 | 120 / 456 | 7 | |
| 171 | 171 [R28D]树上路径 | 135 / 984 | 8 | |
| 195 | 195 [R32D]还原树 | 115 / 360 | 6 | |
| 196 | 196 [R32E]回文串 | 48 / 296 | 8 | |
| 203 | 203 [R33F]最大边权 | 17 / 79 | 7 | |
| 221 | 221 [R36F]运输线路 | 13 / 169 | 9 | |
| 254 | 254 [R41E]颜色题 | 12 / 78 | 8 | |
| 389 | 389 [R62E]树 | 60 / 293 | 7 |
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