当你输入0时会怎样？？？特判一下
by wangzhanchen @ 2023-06-29 15:55:36
@[jinhangdong](https://www.luogu.com.cn/user/1004142)
by wangzhanchen @ 2023-06-29 15:58:49
谢谢
by jinhangdong @ 2023-07-02 05:38:16