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Grokking the Coding Interview Patterns in Go

Solution: Single Number

Explore how to apply bitwise XOR operations to efficiently find the unique element in an array where all others appear twice. This lesson helps you understand implementing a linear-time, constant-space algorithm using XOR properties to single out the non-repeated number.

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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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