Kruskal 重构树
题单介绍
[loj 6493](https://loj.ac/p/6493)
[讲解](https://www.cnblogs.com/call-of-silence/p/18543063)
题目列表
[NOIP 2013 提高组] 货车运输
星际导航
Qpwoeirut and Vertices
Labyrinth
[NOI2018] 归程
Cheap Robot
Graph and Queries
[ONTAK2010] Peaks
[ONTAK2010] Peaks 加强版
[AGC002D] Stamp Rally
Groceries in Meteor Town
水筒
[CERC2016] 机棚障碍 Hangar Hurdles
[IOI 2018] werewolf 狼人
Li Hua and Path
[APIO2020] 交换城市
Clusterization Counting
[SDOI2019] 世界地图
[ARC098F] Donation
[JOI 2020 Final] 火灾 / Fire
火事 (Fire)