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Grokking the Coding Interview Patterns in Python

Single Number

Explore how to use bitwise manipulation to efficiently find the single number that appears only once in an array where every other number appears twice. Understand the problem constraints and implement a solution with linear runtime and constant space complexity through hands-on coding exercises.

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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 nums.length ≤
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