能过这道相似题[这里](https://www.luogu.com.cn/problem/P4145)
by lwyyds @ 2023-01-26 15:28:13
过不了原来的题
by lwyyds @ 2023-01-26 15:28:49
在两个 Case 之间有一个空行
by Acoipp @ 2023-01-26 15:33:59