LeetCode 350 – Intersection of Two Arrays II | Two Pointer Approach | Step-by-Step Explanation

In this video, we solve LeetCode 350 – Intersection of Two Arrays II using the Two Pointer Approach.

This is a very important problem for coding interviews and helps you understand how to use sorting + two pointers efficiently.

What you will learn in this video:
✔️ Problem Explanation (Easy Language)
✔️ Intuition Behind the Approach
✔️ Sorting + Two Pointer Technique
✔️ Step-by-Step Dry Run with Example
✔️ Line-by-Line Code Explanation (C++)
✔️ Time & Space Complexity

Problem:
Given two arrays, return their intersection such that each element appears as many times as it shows in both arrays.

Approach Used:
- Sort both arrays
- Use two pointers
- Compare elements and move pointers accordingly

Time Complexity:
O(n log n + m log m)

Space Complexity:
O(1) (excluding output array)

This problem is commonly asked in coding interviews at top companies, so make sure you understand it properly!

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Related Topics:
- Two Pointer Technique
- Sorting Algorithms
- Array Problems

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Видео LeetCode 350 – Intersection of Two Arrays II | Two Pointer Approach | Step-by-Step Explanation канала Purnansh Patel