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Grokking the Coding Interview Patterns

Solution: Single Number

Explore how to apply bitwise XOR operations to find the element that appears only once in an array where all others appear twice. Understand the algorithm's logic, its linear runtime, and constant space efficiency.

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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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