A Sudoku puzzle uses a 9 × 9 grid in which each column and row, as well as each of the nine 3 x 3 subgrids, must contain all of the digits 1. . . 9. Figure 4.19 presents an example of a valid Sudoku puzzle. This project consists of designing a multithreaded application that determines whether the solution to a Sudoku puzzle is valid. There are several different ways of multithreading this application. One suggested strategy is to create threads that check the following criteria: • A thread to check that each column contains the digits 1 through 9 • A thread to check that each row contains the digits 1 through 9 • Nine threads to check that each of the 3 x 3 subgrids contains the digits 1 through 9 This would result in a total of eleven separate threads for validating a Sudoku puzzle. However, you are welcome to create even more threads for this project. For example, rather than creating one thread that checks all nine 6 2 4 5 3 9187 5 1 9 7 286 3 4 8 37 6 1 4 2 9 5 14 3 8 6 5 7 2 9 95 8 2 4 73 6 1 7 6 2 3 9 14 58 3 719 5 6 8 4 2 49618 2 5 7 3 |2 8 5 4 7 3 916 Figure 4.19 Solution to a 9 x 9 Sudoku puzzle. columns, you could create nine separate threads and have each of them check one column.
A Sudoku puzzle uses a 9 × 9 grid in which each column and row, as well as each of the nine 3 x 3 subgrids, must contain all of the digits 1. . . 9. Figure 4.19 presents an example of a valid Sudoku puzzle. This project consists of designing a multithreaded application that determines whether the solution to a Sudoku puzzle is valid. There are several different ways of multithreading this application. One suggested strategy is to create threads that check the following criteria: • A thread to check that each column contains the digits 1 through 9 • A thread to check that each row contains the digits 1 through 9 • Nine threads to check that each of the 3 x 3 subgrids contains the digits 1 through 9 This would result in a total of eleven separate threads for validating a Sudoku puzzle. However, you are welcome to create even more threads for this project. For example, rather than creating one thread that checks all nine 6 2 4 5 3 9187 5 1 9 7 286 3 4 8 37 6 1 4 2 9 5 14 3 8 6 5 7 2 9 95 8 2 4 73 6 1 7 6 2 3 9 14 58 3 719 5 6 8 4 2 49618 2 5 7 3 |2 8 5 4 7 3 916 Figure 4.19 Solution to a 9 x 9 Sudoku puzzle. columns, you could create nine separate threads and have each of them check one column.
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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(C) Sudoku Validator
Transcribed Image Text:Project 1-Sudoku Solution Validator
A Sudoku puzzle uses a 9 × 9 grid in which each column and row, as well as
each of the nine 3 x 3 subgrids, must contain all of the digits 1. . . 9. Figure
4.19 presents an example of a valid Sudoku puzzle. This project consists of
designing a multithreaded application that determines whether the solution to
a Sudoku puzzle is valid.
There are several different ways of multithreading this application. One
suggested strategy is to create threads that check the following criteria:
• A thread to check that each column contains the digits 1 through 9
• A thread to check that each row contains the digits 1 through 9
• Nine threads to check that each of the 3 x 3 subgrids contains the digits 1
through 9
This would result in a total of eleven separate threads for validating a
Sudoku puzzle. However, you are welcome to create even more threads for
this project. For example, rather than creating one thread that checks all nine
6 2 4 5 3 9187
5 1 9 7 286 3 4
8 37 6 1 4 2 9 5
14 3 8 6 5 7 2 9
95 8 2 4 73 6 1
7 6 2 3 9 14 58
3 719 5 6 8 4 2
49618 2 5 7 3
|2 8 5 4 7 3 916
Figure 4.19 Solution to a 9 x 9 Sudoku puzzle.
columns, you could create nine separate threads and have each of them check
one column.
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