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Grokking the Coding Interview Patterns

Solution: Single Number

Understand how to use bitwise XOR operations to find the single number in an array where every other element appears twice. This lesson teaches a linear time and constant space solution essential for optimizing coding interviews, offering practical skills in bitwise manipulation.

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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
...