@[communist](/space/show?uid=57045) 线段树合并数组不仅要开nlogn还要乘个2到4什么的
by GUO大侠 @ 2018-11-08 10:08:00
@[GUO大侠](/space/show?uid=69935) 我写的是dfs。。。
by communist @ 2018-11-08 10:31:07
@[communist](/space/show?uid=57045) 你不是过了吗,为啥re( '<_' )
by GUO大侠 @ 2018-11-08 10:40:21
@[GUO大侠](/space/show?uid=69935) ~~最后懵逼了，抄的题解~~
by communist @ 2018-11-08 11:38:10
开o2就全RE了、、
by ComplexPug @ 2019-02-18 13:00:14