Leetcode Reverse Integer

class Solution {
public:
    int reverse(int x) 
    {
        int y=abs(x);
        int z=0;
        while(y>0)
        {
           z=z*10+y%10;
           y=y/10;
        }
        if(x>0)return z;
        if(x<0)return -z;       
    }
};