IT/[Everyday]Coding

Hamming Distance

Jang HyunWoong 2019. 1. 23. 12:06

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 ≤ xy < 231.

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.


To solve this problem I used XOR operation.

My solution: 


class Solution:
def hammingDistance(self, x, y):
"""
:type x: int
:type y: int
:rtype: int
"""
return len([x for x in "{0:b}".format(x^y) if x == '1'])



- from : https://leetcode.com

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