LeetCode_Reverse Integer

Reverse digits of an integer.

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

class Solution {
public:
    int reverse(int x) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
        if(x == ) return x;
        int flag = ;

        if(x < )
        {
            x*= -;
            flag = -;
        }
        vector<int> result;
        while(x)
        {
          int temp = x %;
          result.push_back(temp);
          x/=;
        }
        int num = ;
        for(int i = ; i< result.size(); i++)
        {
                num +=result[i];
                num*=;
        }

        return flag*num/ ;
    }
};