Cycle-Detection Undirected Graph | DFS | BFS

🔁 Cycle Detection in Undirected Graph using DFS & BFS (C++) 🔍
In this video, we dive into one of the most frequently asked graph theory problems in coding interviews – Cycle Detection in an Undirected Graph using both Depth-First Search (DFS) and Breadth-First Search (BFS).

problem link : https://www.geeksforgeeks.org/problems/detect-cycle-in-an-undirected-graph/1

cycle_detection_dfs :https://github.com/proteinCoder/graph_concepts/blob/main/cycle_detection_undirected_graph_dfs.cpp

cycle_detection_bfs : https://github.com/proteinCoder/graph_concepts/blob/main/cycle_detection_undirected_graph_bfs.cpp

📘 What you’ll learn:
✅ How to detect cycles using DFS
✅ How to detect cycles using BFS
✅ Time & space complexities
✅ Real interview-style implementation in C++
✅ Minimal comments for quick revision

🚀 Whether you're preparing for your next coding interview or brushing up on graph algorithms, this video is a must-watch!

🧠 Time Complexities:
DFS ➡️ O(V + E)
BFS ➡️ O(V + E)

💡 Graph problems like these are commonly asked in companies like Google, Amazon, Microsoft, etc.

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💬 Drop your doubts/questions in the comments 😄

Видео Cycle-Detection Undirected Graph | DFS | BFS канала proteinCoder