461. 汉明距离

461. 汉明距离

不难

class Solution {
    public int hammingDistance(int x, int y) {
        int res = 0;
        while(x!=0 || y!=0) {
            if((x&1) != (y&1))
                res ++;
            x>>=1;
            y>>=1;
        }
        return res;
    }
}