虚树
Tags：数据结构
占个坑？
咕咕咕
- [x] [BZOJ3611]大工程 https://www.luogu.org/problemnew/show/P4103
- [ ] [BZOJ4912]天才黑客
- [x] [BZOJ2286]消耗战 https://www.luogu.org/problemnew/show/P2495
- [ ] [HNOI2014]世界树 https://www.luogu.org/problemnew/show/P3233
- [ ] [HNOI/AHOI2018]毒瘤
- [ ] [SDOI2007]游戏 https://www.luogu.org/problemnew/show/P2462
- [ ] [CTSC2018]假面
- [x] [CF613D]Kingdom and its Cities https://www.luogu.org/problemnew/show/CF613D
- [ ] [CF809E]Surprise me! https://www.luogu.org/problemnew/show/CF809E