LeetCode Reverse Integer

Description

Reverse digits of an integer.

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

The original problem is here:

My Solution

I solve this problem in Python, as below:

class Solution:
    # @return an integer
    def reverse(self, x):
        max_int =  2147483647
        min_int = -2147483648
        y = "0"
        flag = "";
        if x < 0:
            flag = "-"
            x =-x
        else:
            flag = ""
        while(x > 0) :
            y += str(x%10)
            x = x/10
        y = flag + y
        y = int(y)
        if(y>max_int):
            y = 0
        if(y<min_int):
            y = 0
        return y

Note

There maybe only one problem should be noted is “overflow”. The integer is 32-bit number, we should ensure the result is not beyond the scope -2147483648 ~ 2147483647. If so, the result should be zero.