45.Find Intersection of Two Arrays in Python | Optimized for Interviews

In this tutorial, you’ll learn how to find the intersection of two arrays in Python — including duplicates — using an optimized frequency map approach. Unlike the basic set solution, this method is more efficient and interview-friendly, since it always builds the frequency dictionary from the smaller array, reducing memory usage. 👉 What you’ll learn: How to handle duplicates in intersections Why building frequency from the smaller array is optimal Dry-run explanation for clarity Time & space complexity breakdown 💡 Perfect for coding interviews, LeetCode, and competitive programming. 🔔 Subscribe for more Python & DSA tutorials! #Python #LearnPython #PythonProgramming #DSA #CodingInterview #Arrays #Intersection #ProblemSolving #DataStructures #Algorithms #LeetCode