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Grokking the Coding Interview Patterns

Solution: Single Number

Explore how to use bitwise XOR to identify the single number in an array where every other element appears twice. This lesson teaches an efficient approach with O(n) time and O(1) space complexity, enhancing your problem-solving skills for coding interviews.

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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
...