[LeetCode] 7. Reverse Integer

Python

class Solution:
    def reverse(self, x: int) -> int:
        if x > 0:
            answer = int(str(x)[::-1])
        else:
            answer = -1 * int(str(x * -1)[::-1])
            
        if answer not in range(-2 ** 31, 2 ** 31):
            answer = 0
        
        return answer