Detect a Cycle in an Undirected Graph (BFS) | Graph Series

How do you detect a cycle in an undirected graph using BFS? In this video, we'll understand the intuition behind the algorithm, walk through a complete dry run, and implement the solution in C++. Instead of just memorizing the code, we'll understand why tracking the parent of each node is necessary and how a visited neighbour helps us identify a cycle. 🔗 Problem Link (GeeksforGeeks): https://www.geeksforgeeks.org/problem... If you're preparing for coding interviews or strengthening your graph fundamentals, this video will help you understand the algorithm step by step. 👍 Like the video if it helped you understand cycle detection, and subscribe for more DSA and system design content! #DSA #GraphAlgorithms #CycleDetection #BFS #Cpp #CodingInterview #DataStructuresAndAlgorithms #programming