class Solution:
    def reverse(self, x: int) -> int:
        if x < 0:
            x = -int(str(-x)[::-1])
        else:
            x = int(str(x)[::-1])
        if x >= -(2**31) and x <= 2**31-1:
            return x  
        else:
            return 0

数学 简单 每日一题

python 就是好用

https://leetcode-cn.com/problems/reverse-integer/