Leetcode Reverse Integer

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Reverse digits of an integer.

Example1: x = 123, return 321
Example2: x = -123, return -321


class Solution:    def reverse(self, x):        sum = 0;        cnt = 1;                if x < 0:            cnt = -1;            x = -x;                    while x > 0:            sum *= 10;            sum += x%10;            x = x/10;                   sum *= cnt;                if sum > 0x7fffffff:            sum = 0;        if sum < -2 ** 32:            sum = 0;        return sum;


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