你把变量f改为整型并且
```c
if(f=='0')
```
改为
```c
if(f==0)
```
就可通过！！！！
关注一下！！！
by ability_well @ 2023-01-24 16:32:50
@[Lac12345](/user/738213)
真的太神奇了！已经AC了，谢谢（已关）！
by Castaways @ 2023-01-24 18:25:49