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  • 3 месяца назадОпубликованоTrie Lab

BFS and DFS: Graph Traversal Algorithms for FAANG Interviews | DSA Essentials

Let's dive deep into Breadth-First Search (BFS) and Depth-First Search (DFS) — the backbone of solving graph problems. Learn how to traverse graphs, find paths through mazes, and understand when to use each algorithm. Master the two fundamental graph traversal algorithms that appear in almost every coding interview! ⸻ Chapters: 00:00 Introduction & Recap 00:35 Basics of Graph Traversal Algorithms 02:44 Breadth-First Search (BFS) Explained 03:33 BFS Simulation 04:55 BFS Implementation Advice 05:48 Solving Mazes with BFS 07:07 Depth-First Search (DFS) Introduction 08:25 Recursive DFS Explained 09:35 DFS Simulation 11:35 Solving Mazes with DFS 12:14 BFS vs DFS: The Key Difference 15:51 Detailed Comparison 16:55 Summary & Next Steps ⸻ In this episode, you'll discover: - How graph traversal works with discovered/undiscovered/processed states - BFS implementation using queues and level-by-level exploration - DFS implementation using both stacks and recursion - The fundamental difference between BFS and DFS traversal patterns - How to solve maze problems using graph algorithms - Why BFS finds the shortest path in unweighted graphs - Time and space complexity analysis for both algorithms Practice Graph Algorithms Interactively Ready to implement what you've learned? Visit to: - Visualize BFS and DFS step-by-step - Solve interactive maze problems - Practice graph traversal coding challenges - See animations of queue/stack operations in real-time Perfect for: - Students learning graph algorithms - Software engineers preparing for FAANG interviews - Competitive programmers mastering graph theory - Anyone wanting to understand how path-finding works Prerequisites: - Basic understanding of graphs (watch Part 1!) - Familiarity with queues and stacks - Basic programming knowledge Subscribe and hit the bell to catch the next part of the series where we explore more such algorithms in detail. Connect with me: LinkedIn: Practice Problems: #GraphTheory #BFS #DFS #DataStructures #Algorithms #FAANGInterview #DSA #CodingInterview #GraphTraversal #TechInterview