https://github.com/stylepatrick/sudoku-solver

Sudoku solver algorithm in Java
https://github.com/stylepatrick/sudoku-solver

algorithm java sudoku-solver

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Sudoku solver algorithm in Java

• Host: GitHub
• URL: https://github.com/stylepatrick/sudoku-solver
• Owner: stylepatrick
• License: mit
• Created: 2022-04-13T18:37:41.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2022-05-01T15:48:27.000Z (over 3 years ago)
• Last Synced: 2025-01-26T07:41:25.786Z (10 months ago)
• Topics: algorithm, java, sudoku-solver
• Language: Java
• Homepage:
• Size: 6.84 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# sudoku-solver

Solves a Sudoku from a file using a recursive algorithm.

The location and name of the file can be specified using the args parameter.

(e.g. java -jar sudoku.jar /home/user/sudoku/input.txt)

If the file does not match the correct syntax, an exception is thrown.

Empty spaces must be filled with 0.

Example format:

8 0 0 0 0 0 0 0 0 


0 0 3 6 0 0 0 0 0 


0 7 0 0 9 0 2 0 0 


0 5 0 0 0 7 0 0 0 


0 0 0 0 4 5 7 0 0 


0 0 0 1 0 0 0 3 0 


0 0 1 0 0 0 0 6 8 


0 0 8 5 0 0 0 1 0 


0 9 0 0 0 0 4 0 0 


There are two ways to print the solved Sudoku, the console output or via a file called output.txt

Example format of the solved sudoku from input.txt:

8 1 2 7 5 3 6 4 9 


9 4 3 6 8 2 1 7 5 


6 7 5 4 9 1 2 8 3 


1 5 4 2 3 7 8 9 6 


3 6 9 8 4 5 7 2 1 


2 8 7 1 6 9 5 3 4 


5 2 1 9 7 4 3 6 8 


4 3 8 5 2 6 9 1 7 


7 9 6 3 1 8 4 5 2