@[PuJunXi](/user/783906) $\text{Hack}$：
输入 `9985 12`
应输出`17:57`
您的输出`18:0-3`
by Versed_sine @ 2023-01-16 18:41:06
在第二个`if`判断之后再加一次
```python
if pm < 0: #退位
ph -= 1
pm += 60
```
就可以[AC](https://www.luogu.com.cn/record/100005564)
by Versed_sine @ 2023-01-16 18:44:53
@[Versed_sine](/user/680084)
栓q 谢谢啦
[AC](https://www.luogu.com.cn/record/100104911)
by PuJunXi_python @ 2023-01-17 19:53:47
请教我怎么写python
by water8424 @ 2023-01-19 10:49:28