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Grokking the Coding Interview Patterns in JavaScript

Solution: Single Number

Understand how to apply bitwise XOR operations to identify the single number in an array where all others appear twice. This lesson teaches you to implement an efficient solution in JavaScript with linear runtime and constant space usage.

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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
...