更正：打了一个模板
by 蒟蒻CGZ @ 2020-06-21 23:10:29
可以拿[这个](https://www.luogu.com.cn/paste/fhiymawc)试一下
by B_1168 @ 2020-06-22 00:41:01
能过啊
by DreamFox @ 2020-06-25 19:01:23
[This](https://www.luogu.com.cn/record/34650098)
我用STL中的deque
by DreamFox @ 2020-06-25 19:02:16