Solution: Intersection of Two Arrays
Explore how to return the unique intersection of two integer arrays using a hash map. This lesson helps you implement an efficient algorithm that marks elements for uniqueness, ensuring no duplicates in the result. Learn to optimize time complexity to O(n + m) and understand the practical advantages of hash maps in coding challenges.
We'll cover the following...
We'll cover the following...
Statement
You are given two integer arrays, arr1 and arr2. Your task is to return a new array containing the intersection of both arrays.
Each element in the result must be unique.
The order of the elements in the result does not matter.
Constraints
arr1.length,arr2.lengtharr1[i],arr2[i]...