@[UKE_](/user/307826) 试试洛谷的IDE，好像输出是这样的：
```
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
Crossing the line
```
by Kastic_pd @ 2021-07-20 15:47:24
众所周知，洛谷IDE和DEVc++是不同的.
把快读改cin或scanf能93，剩下那个点是你算法本身会超时...
by djwj323 @ 2021-07-20 15:55:52
@[Kastic_pd](/user/307815) 本地与IDE有什么不同吗
by Lamorak @ 2021-07-20 15:56:06
@[UKE_](/user/307826) 洛谷的IDE好像是Linux下运行的，有一些东西不能用，如`gets`之类的
by Kastic_pd @ 2021-07-20 16:02:14
@[Cstring_](/user/212320) 所以我把快读改成scanf后[A了](https://www.luogu.com.cn/record/53691794)？
by Lamorak @ 2021-07-20 16:03:17
@[UKE_](/user/307826) 所以为什么我改了后93?
~~果然是玄学吧~~
by djwj323 @ 2021-07-20 16:05:15