Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

Q: How can I make a shopping cart using windows form c# I want to be able to add/remove items from the…
A: In online marketing, a shopping cart is a piece of e-commerce software running on a web server, that…
Q: Python: What are the steps to opening a web page using a software like this?
A: In Python, there are several libraries available to perform various tasks, including opening a web…
Q: Explain the importance of usability in computer interface design.
A: In today's digital landscape, usability holds a pivotal role in computer interface design. It…
Q: Describe the purpose of assignment operators in programming. Provide examples of simple and compound…
A: Assignment operators in programming serve the purpose of assigning a value or the result of an…
Q: Why is it necessary to fix bugs in software?
A: Debugging: Finding and resolving an existing or potential issue in computer programming is the…
Q: If you own the copyright to a piece of software, why do you need a license to use it?
A: If one possesses the copyright to a piece of software, they must still obtain a license to employ it…
Q: How to write a valid standard php code block
A: Please find the answer below :
Q: What is Line control? Line control (#line)
A: Here is the explanation about line control.
Q: The distinction between Open Source and proprietaryly licensed software is explained.
A: 1. Programming is the process of creating a set of instructions that tells a computer how to perform…
Q: Select the correct answer from the following choices. This includes apps like word processors,…
A: FALSE is the right answer to this question.  Utility applications include the following: - These…
Q: LAB Q - Write a program in c to read names from the file "name.txt", which include (10) names ,then…
A: In the c program, add the necessary libraries such stdlib.h and string.h and then create the main…
Q: You're developing a Python program for "FitFuel Nutrition," an online nutrition store. The store…
A: Define a class named Product with attributes for name, features, price, and specifications.Define a…
Q: PYTHON PROGRAMMING ONLY PLEASE I am doing a patient portal/record keeping system i already have the…
A: The Python code is given below with output screenshot
Q: Explain the purpose of using interfaces in software design.
A: In the field of software design interfaces play a role, in creating maintainable software systems.An…
Q: __ is a constant (numeric value) or an address that determines the upper limit of the test range.
A: The correct answer is given in step 2.
Q: Errors in code may manifest in a variety of ways, including syntax, logic, and during runtime.
A: Introduction Error: In computer programming, an error is a deviation from the intended behavior of a…
Question
Python code please thank you!!
## Educational Text: Implementing Depth-First Search with a Stack ### Requirements 1. **Python Implementation**: Write a program named `dfs-stack.py` that executes Algorithm 2.3 for graph depth-first search (DFS) utilizing a stack. 2. **Adjacency Matrix Usage**: Do not employ an adjacency list as per Algorithm 2.3 instructions. Use an adjacency matrix instead (a two-dimensional array, or a list of lists in Python). 3. **Flexible List Methods**: Use any list method suitable for your needs (e.g., append, pop). ### Implementation Details 1. **Algorithmic Solution**: Develop an algorithmic solution using pseudocode, based on the requirements and detailed implementation steps. Include your logic and any pseudocode from Algorithm 2.3. Add a Certificate of Authenticity as comments at the start of your Python code. If you collaborated, include their names. 2. **User Input for Vertices**: Prompt the user to input the number of vertices, \( V \), for the graph, \( G \). 3. **Adjacency Matrix Representation**: Construct a square matrix for the adjacency representation—each row and column corresponds to a vertex. Initiate the matrix with zeroes. 4. **User Input for Matrix Values**: Prompt the user to assign values of 1 to specific matrix elements, indicating vertex connections. 5. **Matrix Display**: Steps 3, 4, and 5 collectively result in an adjacency matrix that represents the graph \( G \). Display this matrix. 6. **Specify Starting Vertex**: Prompt the user to determine the starting vertex in \( G \). 7. **Implement Algorithm 2.3 with Enhancements**: - Use the adjacency matrix instead of an adjacency list. - After line 5 (prior to line 6) in Algorithm 2.3, program the display of current stack values. - The while block should conclude with printing the stack’s current status. By following these steps, your application should effectively showcase the stack's evolution as the DFS algorithm is applied to graph \( G \).
expand button
Transcribed Image Text:## Educational Text: Implementing Depth-First Search with a Stack ### Requirements 1. **Python Implementation**: Write a program named `dfs-stack.py` that executes Algorithm 2.3 for graph depth-first search (DFS) utilizing a stack. 2. **Adjacency Matrix Usage**: Do not employ an adjacency list as per Algorithm 2.3 instructions. Use an adjacency matrix instead (a two-dimensional array, or a list of lists in Python). 3. **Flexible List Methods**: Use any list method suitable for your needs (e.g., append, pop). ### Implementation Details 1. **Algorithmic Solution**: Develop an algorithmic solution using pseudocode, based on the requirements and detailed implementation steps. Include your logic and any pseudocode from Algorithm 2.3. Add a Certificate of Authenticity as comments at the start of your Python code. If you collaborated, include their names. 2. **User Input for Vertices**: Prompt the user to input the number of vertices, \( V \), for the graph, \( G \). 3. **Adjacency Matrix Representation**: Construct a square matrix for the adjacency representation—each row and column corresponds to a vertex. Initiate the matrix with zeroes. 4. **User Input for Matrix Values**: Prompt the user to assign values of 1 to specific matrix elements, indicating vertex connections. 5. **Matrix Display**: Steps 3, 4, and 5 collectively result in an adjacency matrix that represents the graph \( G \). Display this matrix. 6. **Specify Starting Vertex**: Prompt the user to determine the starting vertex in \( G \). 7. **Implement Algorithm 2.3 with Enhancements**: - Use the adjacency matrix instead of an adjacency list. - After line 5 (prior to line 6) in Algorithm 2.3, program the display of current stack values. - The while block should conclude with printing the stack’s current status. By following these steps, your application should effectively showcase the stack's evolution as the DFS algorithm is applied to graph \( G \).
**Algorithm 2.3: Graph Depth-First Search with a Stack** **StackDFS(G, node) → visited** - **Input:** - \( G = (V, E) \), a graph - \( \text{node} \), the starting vertex in \( G \) - **Output:** - \( \text{visited} \), an array of size \(|V|\) such that \( \text{visited}[i] \) is TRUE if we have visited node \( i \), FALSE otherwise **Algorithm Steps:** 1. \( S \leftarrow \text{CreateStack()} \) 2. \( \text{visited} \leftarrow \text{CreateArray}(|V|) \) 3. **for** \( i = 0 \) to \(|V| - 1\) **do** 4.   \( \text{visited}[i] \leftarrow \text{FALSE} \) 5. \(\text{Push}(S, \text{node})\) 6. **while** not \(\text{IsStackEmpty}(S)\) **do** 7.   \( c \leftarrow \text{Pop}(S) \) 8.   \( \text{visited}[c] \leftarrow \text{TRUE} \) 9.   **foreach** \( v \) in \(\text{AdjacencyList}(G, c)\) **do** 10.    **if** not \( \text{visited}[v] \) **then** 11.     \(\text{Push}(S, v)\) 12. **return** \( \text{visited} \)
expand button
Transcribed Image Text:**Algorithm 2.3: Graph Depth-First Search with a Stack** **StackDFS(G, node) → visited** - **Input:** - \( G = (V, E) \), a graph - \( \text{node} \), the starting vertex in \( G \) - **Output:** - \( \text{visited} \), an array of size \(|V|\) such that \( \text{visited}[i] \) is TRUE if we have visited node \( i \), FALSE otherwise **Algorithm Steps:** 1. \( S \leftarrow \text{CreateStack()} \) 2. \( \text{visited} \leftarrow \text{CreateArray}(|V|) \) 3. **for** \( i = 0 \) to \(|V| - 1\) **do** 4.   \( \text{visited}[i] \leftarrow \text{FALSE} \) 5. \(\text{Push}(S, \text{node})\) 6. **while** not \(\text{IsStackEmpty}(S)\) **do** 7.   \( c \leftarrow \text{Pop}(S) \) 8.   \( \text{visited}[c] \leftarrow \text{TRUE} \) 9.   **foreach** \( v \) in \(\text{AdjacencyList}(G, c)\) **do** 10.    **if** not \( \text{visited}[v] \) **then** 11.     \(\text{Push}(S, v)\) 12. **return** \( \text{visited} \)
Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
bartleby
This is a popular solution
See solutionCheck out a sample Q&A here
Step 1
VIEW
Step 2
VIEW
bartleby

Trending nowThis is a popular solution!

bartleby

Step by stepSolved in 2 steps with 2 images

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
SEE MORE TEXTBOOKS