[代码](https://www.luogu.com.cn/paste/22l6z5pp)
[记录](https://www.luogu.com.cn/record/149222868)
by enyyyyyyy @ 2024-03-03 18:41:28
@[enyyyyyyy](/user/961881) 但是我开 $18$ 也过不去，必须开 $19$……
by CaiZi @ 2024-03-03 18:56:31
确实，造一个 $x$，$y$ 深度很大并且一样的能卡掉吧
by wukaichen888 @ 2024-03-03 19:04:21
@[CaiZi](/user/728853) @[wukaichen888](/user/723238) 谢谢
by enyyyyyyy @ 2024-03-03 19:24:18