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Grokking the Coding Interview Patterns in Python

Solution: Intersection of Two Arrays

Explore how to find the unique intersection of two arrays by leveraging hash maps to track elements. Understand this approach's time and space complexity while practicing efficient problem-solving techniques in Python.

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

  • 1≤1 \leq arr1.length, arr2.length ≤1000\leq 1000

  • 0≤0 \leqarr1[i], arr2[i] ≤1000 ...