[LeetCode][Python3] 7. Reverse Integer

snoopybox 2018. 9. 11. 22:05

Problem :

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

My Solution :

class Solution:
    def reverse(self, x):
        """
        :type x: int
        :rtype: int
        """
        sign = 1
        if x < 0:
            sign = -1
            x = -x

        result = 0
        while x:
            result = 10*result + x % 10
            x //= 10
            if 2**31 < result:
                return 0
        return sign * result

Comment :

문자열로 변환하지 않고 풀어야 의미가 있는 문제.