Single Number at Airbnb

Easy77.3% acceptance

This problem has 75.0% frequency at Airbnb.

Problem Description

Given a **non-empty** array of integers `nums`, every element appears _twice_ except for one. Find that single one. You must implement a solution with a linear runtime complexity and use only constant extra space.

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Topics

Array Bit Manipulation

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Problem Description

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Also asked at 14 companies

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