Easybit-manipulation
Single Number
TIME: O(n)
SPACE: O(1)
Problem Statement
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.
Real Engineering Applications
In production systems, this concept directly maps to caching index layers, route lookups optimizations, compiler scope parsing validations, and multi-thread dependency schedulers.
DevJam Practice Engine v1.0ACCESSIBLE LAB
solution.js
Console Output