| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 15169 | loj#P144 DFS 序 1 | 3 / 8 | 10 | |
| 15170 | loj#P145 DFS 序 2 | 1 / 10 | 10 | |
| 15171 | loj#P146 DFS 序 3,树上差分 1 | 1 / 5 | 10 | |
| 15172 | loj#P147 DFS 序 4 | 0 / 0 | (None) | |
| 15229 | loj#P523 「LibreOJ β Round #3」绯色 IOI(悬念) | 0 / 0 | (None) | |
| 15285 | loj#P2001 「SDOI2017」树点涂色 | 1 / 16 | 10 | |
| 15333 | loj#P2050 「HNOI2016」树 | 0 / 0 | (None) | |
| 15362 | loj#P2079 「JSOI2016」轻重路径 | 0 / 0 | (None) | |
| 16183 | loj#P2987 「CTSC2016」时空旅行 | 1 / 2 | 10 | |
| 16196 | loj#P3000 「JOISC 2015 Day2」Road Development | 0 / 0 | (None) | |
| 17495 | loj#P6514 「雅礼集训 2018 Day10」文明 | 0 / 0 | (None) |
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