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Grokking the Coding Interview Patterns

Solution: Hamming Distance

Explore how to find the Hamming distance between two integers by identifying differing bit positions. This lesson teaches the use of XOR to isolate differences and applies Brian Kernighan's algorithm to count set bits efficiently, providing a constant time and space complexity solution.

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Statement

The Hamming distance between two integers is defined as the number of bit positions where the corresponding bits of the two numbers differ.

Given two integers x and y, your task is to find and return the Hamming distance between them.

Constraints:

  • 0≤0 \leq x, y ≤231−1\leq 2^{31} - 1 ...