The Hamming distance between two integers is the number of positions at which the corresponding bits are different.

Given two integers x and y, calculate the Hamming distance.

Note:0 ≤ x, y < 231.

Example:

Input: x = 1, y = 4Output: 2Explanation:1   (0 0 0 1)4   (0 1 0 0)       ↑   ↑The above arrows point to positions where the corresponding bits are different.
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int hammingDistance(int x, int y) {        int d = 0;    for (int i = 0; i < 32; ++i)    {        d += (x & 1) ^ (y & 1);        x >>= 1;        y >>= 1;    }        return d;}