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 < 2^31.
Example:
Input: x = 1, y = 4
Output: 2
Explanation:
1 (0 0 0 1)
4 (0 1 0 0)
The above arrows point to positions where the corresponding bits are different.
var hammingDistance = function(x, y) {
var result = 0;
var n = x ^ y;
while (n !== 0) {
result++;
n &= n - 1;
}
return result;
};
网友评论