Path Existence Queries in a Graph I | Graph | Disjoint Set Union | Leetcode 3523

In this video, we solve LeetCode 3532 - Path Existence Queries in a Graph I using the Disjoint Set Union (DSU) / Union Find data structure. This problem is a great introduction to solving graph connectivity queries efficiently using DSU instead of repeatedly traversing the graph. Problem 3532. Path Existence Queries in a Graph I Topics: Graphs Disjoint Set Union (DSU) Union Find Connected Components Query Processing What You’ll Learn How DSU (Union Find) works Path Compression Optimization Union by Rank / Size Solving Connectivity Problems Efficiently Common DSU Interview Patterns Code The complete solution is explained and implemented in C++. About Me I’m Aman, a Software Engineer passionate about backend development, system design, and building scalable applications. Connect With Me Linkedin:   / aman-meenia-b32a00206   Twitter: https://x.com/meenia_aman LeetCode: https://leetcode.com/u/AmanMeenia0001/