Hamming Distance - The Coding Shala

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 In this post, we will learn how to find Hamming Distance between two integers and will implement its solution in Java.

Hamming Distance

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.

Example 1:
Input: x = 1, y = 4
Output: 2
Explanation:
1   (0 0 0 1)
4   (0 1 0 0)

Hamming Distance Java Program

Approach 1

First find the XOR or both number then check bits, if 1 than increase count by 1.

Java Program: 

class Solution {
    public int hammingDistance(int x, int y) {
        x = x ^ y;
        int dis = 0;
        for(int i=0; i<32; i++) {
            if(((x >> i) & 1) == 1) dis++;
        }
        return dis;
    }
}


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