[P4604](https://www.luogu.com.cn/problem/P4604)
by dying @ 2021-04-09 21:25:13
@[dying](/user/85593) az
by 银杉水杉秃杉 @ 2021-04-09 21:31:10
@[__OwO__](/user/237496)
好题不该推荐吗
@[银杉水杉秃杉](/user/53022)
我太菜了,只写过一个没用的,平均速度比堆排还慢,[你看看吧](https://www.luogu.com.cn/paste/hxbyk6mk)~~(有些其他的,懒得重新搞了)~~
by dying @ 2021-04-09 21:32:44
@[dying](/user/85593) 感谢大佬
by 银杉水杉秃杉 @ 2021-04-09 21:36:06
一个六级勾叫我一个没勾的大佬,我又要折寿了
by dying @ 2021-04-09 21:39:02