Runtime: 6 ms , Your runtime beats 2.52 % of cpp submissions.

461_Hamming Distance.cpp

class Solution {
public:
    int hammingDistance(int x, int y) {
    const int MAX = 10000;
    bool two_x[MAX] = {0}, two_y[MAX] = {0};
    int i = MAX-1, j = MAX-1;
    int point = 0;

    while(x>=2)
    {
        two_x[i--] = x%2;
        x= x/2;
    }
    if(x == 1)
        two_x[i] = 1;
    while(y>=2)
    {
        two_y[j--] = y%2;
        y= y/2;
    }
    if(y == 1)
        two_y[j] = 1;

    int k = i>j ? j : i ;
    while(k<MAX)
    {
        if(two_x[k] !=two_y[k++])
            point++;
    }

    return point;
    }
};