Lec 8 | Depth First Search Traversal ( DFS ) | Data Structures | BTech 2nd Year

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This lecture explains Depth First Search (DFS), one of the most important graph traversal algorithms in Data Structures and a frequently asked topic in university exams.

DFS explores a graph by going as deep as possible before backtracking, using a Stack (explicit or recursion).

✅ You Will Learn (Exam-Oriented):

What is Depth First Search (DFS)
Why DFS is called depth-wise traversal
Role of Stack / Recursion in DFS
DFS algorithm (step-by-step)
DFS traversal using Adjacency Matrix
DFS traversal using Adjacency List
Recursive DFS explanation
Time complexity: O(V + E)
Applications of DFS
How DFS questions are asked in exams

The explanation is algorithmic, example-driven, and strictly exam-focused, ideal for 5–10 mark questions and viva.

📘 This Data Structures Playlist Covers:

Graph basics & terminologies
Graph representations
Graph Traversal (BFS & DFS)
Shortest path algorithms
Minimum spanning trees

🎯 This Video Is Helpful For:

BTech 2nd Year students
Data Structures exam preparation
Understanding graph traversal algorithms
RGPV & other university exams
GATE & competitive exam basics

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