Reverse Integer

/*

Reverse digits of an integer.

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

*/

class Solution {
public:
    int reverse(int x) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        int signal = 1;
        if (x<0) signal = -1;
       
        int reminder = x * signal;
        int temp;
        int result = 0;
        int const MAX = 20000000;
        while(reminder > 0 && result < MAX){
            temp = reminder/10;
            result = result*10 + reminder - temp*10;
            reminder = temp;
        }
        if(result < MAX) return signal * result;
        else return MAX;
    }
};