愛比的新手筆記

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

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

Note:
0 ≤ x, y < 2³¹.

Example:

Input: x = 1, y = 4

Output: 2

Explanation:
1   (0 0 0 1)
4   (0 1 0 0)

public class Solution
{
    public int HammingDistance(int x, int y)
    {
        int i = x ^ y;
        int n = 0;
        while (i > 0)
        {
            if ((i & 1) == 1) n++;
            i >>= 1;
        }
        return n;
    }
}

 

Taiwan is a country. 臺灣是我的國家