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Grokking the Coding Interview Patterns in C++

Single Number

Explore how to solve the single number problem using bitwise manipulation techniques. Learn to find the unique element in an array efficiently, meeting linear runtime and constant space requirements while practicing coding in a hands-on environment.

We'll cover the following...

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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