[Link](https://www.luogu.com.cn/paste/n3b0h4tv)+O2+卡常
------------
~~+深呼吸~~
by JasonWZJ @ 2020-03-21 15:37:50
萌新切黑题谔谔
by 高逸飞 @ 2020-03-21 15:38:08
@[JasonWZJ](/user/318037) 试过了
by FZzzz @ 2020-03-21 15:38:14
顶一下
by FZzzz @ 2020-03-21 15:39:52
~~顺便喷一下大毒瘤~~
by FZzzz @ 2020-03-21 15:40:11
@[function_of_zero](/user/174045) ~~那就12点【中午】交~~
by JasonWZJ @ 2020-03-21 15:40:23
~~我拿到了这题的最慢做法/fad~~
by bellmanford @ 2020-03-21 15:40:58
@[function_of_zero](/user/174045) **~~[建议阅读](https://www.cnblogs.com/zxqxwnngztxx/p/7672902.html)~~**
by JasonWZJ @ 2020-03-21 15:41:38
qndmx
by tuzhewen @ 2020-03-21 15:42:16
@[bellmanford](/user/116015) 那您能不能帮帮我啊/kel
by FZzzz @ 2020-03-21 15:42:16