LeetCode 368 – Largest Divisible Subset | DP + Sorting Explained Clearly

LEETCODE 368: Largest Divisible Subset | DP + Sorting Explained Clearly

Question Link: https://leetcode.com/problems/largest...

In this video, we explore the complete intuition behind LeetCode 368: Largest Divisible Subset, a classic Dynamic Programming + Sorting problem. The goal is to find the largest subset where every pair of numbers satisfies divisibility conditions.

You will learn:

✔ Why sorting helps form valid divisible chains
✔ How to use DP to track the longest valid subset
✔ How to maintain parent pointers to reconstruct the result
✔ Step-by-step dry run to build intuition
✔ How to achieve an optimal O(n²) DP solution
✔ Why this is an important concept in coding interviews

This explanation is beginner-friendly yet detailed enough for competitive programmers who want to master DP pattern recognition.

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