4
18
2016
0

[bzoj]3637: Query on a tree VI

传送门-->http://www.lydsy.com/JudgeOnline/problem.php?id=3637

我居然作死点了这道题

显然可以$lct$硬上，但是突然就不想写$lct$，没办法用树剖将就一下

Category: bzoj | Tags: 树状数组 线段树 LCT 树剖

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