Connected Cities by Common Divisors | Union-Find JavaScript Solution | LeetCode Graph Problem

In this video, we solve the Connected Cities by Common Divisors problem using Union-Find (Disjoint Set Union) in JavaScript.

You’ll learn:
✅ How to use Union-Find to efficiently check city connectivity
✅ How to link cities sharing common divisors greater than a given threshold
✅ Step-by-step explanation of logic and code

📘 Example:

Input: n = 6, threshold = 2, queries = [[1,4],[2,5],[3,6]] Output: [false,false,true]

💻 Topics Covered:

Graph Connectivity

Disjoint Set Union (DSU)

JavaScript Data Structures

LeetCode Hard Problem Solutions

Perfect for coding interviews, competitive programming, and DSA learners.
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Видео Connected Cities by Common Divisors | Union-Find JavaScript Solution | LeetCode Graph Problem канала Coding theory