Hamming Distance | Leetcode #461

class Solution {
public:
    int hammingDistance(int x, int y) {
        int xorVal = x^y;
        int countSetBits = 0;
        while(xorVal){
            if(xorVal & 1)
                countSetBits++;
            xorVal >>= 1;
        }
        return countSetBits;
    }
};