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Grokking the Coding Interview Patterns in JavaScript

Solution: Single Number

Explore how to solve the problem of finding the single unique number in an array where every other number appears twice by using bitwise XOR operations. Understand the XOR properties and implement a solution with linear time complexity and constant space. This lesson equips you to apply bitwise manipulation for efficient coding interview solutions.

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Statement

Given an array of integers, where every element appears twice except for one, find the element that occurs only once.

Note: The solution must have linear runtime and constant space complexity.

Constraints:

  • 1≤1 \leq
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