Answered: Programming with Python: v Implement…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Programming with Python:

v Implement Depth First Search (Traversal)

v Implement Breadth First Traversal

For the implementation:

1. Create a directed graph with 10 Vertices

2. Add arbitrary edges among vertices to satisfy the directed graph

3. Run your program and show appropriate output (Traversal order)

4. Your implementation should be fully commented

Please, submit your source code and output (Screen Capture) too.

Expert Solution

Step 1

Depth First Search(DFS):

DFS is the graph traversal algorithm. It uses a stack to implement.

It is recursive in the manner and it uses backtracking.

The algorithm for dfs is as follows:

start
if a new node is found push it into the stack
marked the new node as visited
check the node has an adjacent node if yes then
- if that node is not visited then visit and marked as visited
- removed it from the stack if the node has no adjacent node
Repeat the above steps until the graph is not end

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