feat: sudoku solver 2D using recursive backtracking
This commit is contained in:
NIHART, Jeremi
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# Created by https://www.toptal.com/developers/gitignore/api/rider,visualstudiocode,dotnetcore,csharp,visualstudio
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|
# .idea/modules
|
||||||
|
# *.iml
|
||||||
|
# *.ipr
|
||||||
|
|
||||||
|
# CMake
|
||||||
|
cmake-build-*/
|
||||||
|
|
||||||
|
# Mongo Explorer plugin
|
||||||
|
.idea/**/mongoSettings.xml
|
||||||
|
|
||||||
|
# File-based project format
|
||||||
|
*.iws
|
||||||
|
|
||||||
|
# IntelliJ
|
||||||
|
out/
|
||||||
|
|
||||||
|
# mpeltonen/sbt-idea plugin
|
||||||
|
.idea_modules/
|
||||||
|
|
||||||
|
# JIRA plugin
|
||||||
|
atlassian-ide-plugin.xml
|
||||||
|
|
||||||
|
# Cursive Clojure plugin
|
||||||
|
.idea/replstate.xml
|
||||||
|
|
||||||
|
# SonarLint plugin
|
||||||
|
.idea/sonarlint/
|
||||||
|
|
||||||
|
# Crashlytics plugin (for Android Studio and IntelliJ)
|
||||||
|
com_crashlytics_export_strings.xml
|
||||||
|
crashlytics.properties
|
||||||
|
crashlytics-build.properties
|
||||||
|
fabric.properties
|
||||||
|
|
||||||
|
# Editor-based Rest Client
|
||||||
|
.idea/httpRequests
|
||||||
|
|
||||||
|
# Android studio 3.1+ serialized cache file
|
||||||
|
.idea/caches/build_file_checksums.ser
|
||||||
|
|
||||||
|
### VisualStudioCode ###
|
||||||
|
!.vscode/*.code-snippets
|
||||||
|
|
||||||
|
# Local History for Visual Studio Code
|
||||||
|
|
||||||
|
# Built Visual Studio Code Extensions
|
||||||
|
*.vsix
|
||||||
|
|
||||||
|
### VisualStudioCode Patch ###
|
||||||
|
# Ignore all local history of files
|
||||||
|
.history
|
||||||
|
.ionide
|
||||||
|
|
||||||
|
### VisualStudio ###
|
||||||
|
|
||||||
|
# User-specific files
|
||||||
|
|
||||||
|
# User-specific files (MonoDevelop/Xamarin Studio)
|
||||||
|
|
||||||
|
# Mono auto generated files
|
||||||
|
|
||||||
|
# Build results
|
||||||
|
|
||||||
|
# Visual Studio 2015/2017 cache/options directory
|
||||||
|
# Uncomment if you have tasks that create the project's static files in wwwroot
|
||||||
|
|
||||||
|
# Visual Studio 2017 auto generated files
|
||||||
|
|
||||||
|
# MSTest test Results
|
||||||
|
|
||||||
|
# NUnit
|
||||||
|
|
||||||
|
# Build Results of an ATL Project
|
||||||
|
|
||||||
|
# Benchmark Results
|
||||||
|
|
||||||
|
# .NET Core
|
||||||
|
|
||||||
|
# ASP.NET Scaffolding
|
||||||
|
|
||||||
|
# StyleCop
|
||||||
|
|
||||||
|
# Files built by Visual Studio
|
||||||
|
|
||||||
|
# Chutzpah Test files
|
||||||
|
|
||||||
|
# Visual C++ cache files
|
||||||
|
|
||||||
|
# Visual Studio profiler
|
||||||
|
|
||||||
|
# Visual Studio Trace Files
|
||||||
|
|
||||||
|
# TFS 2012 Local Workspace
|
||||||
|
|
||||||
|
# Guidance Automation Toolkit
|
||||||
|
|
||||||
|
# ReSharper is a .NET coding add-in
|
||||||
|
|
||||||
|
# TeamCity is a build add-in
|
||||||
|
|
||||||
|
# DotCover is a Code Coverage Tool
|
||||||
|
|
||||||
|
# AxoCover is a Code Coverage Tool
|
||||||
|
|
||||||
|
# Coverlet is a free, cross platform Code Coverage Tool
|
||||||
|
|
||||||
|
# Visual Studio code coverage results
|
||||||
|
|
||||||
|
# NCrunch
|
||||||
|
|
||||||
|
# MightyMoose
|
||||||
|
|
||||||
|
# Web workbench (sass)
|
||||||
|
|
||||||
|
# Installshield output folder
|
||||||
|
|
||||||
|
# DocProject is a documentation generator add-in
|
||||||
|
|
||||||
|
# Click-Once directory
|
||||||
|
|
||||||
|
# Publish Web Output
|
||||||
|
# Note: Comment the next line if you want to checkin your web deploy settings,
|
||||||
|
# but database connection strings (with potential passwords) will be unencrypted
|
||||||
|
|
||||||
|
# Microsoft Azure Web App publish settings. Comment the next line if you want to
|
||||||
|
# checkin your Azure Web App publish settings, but sensitive information contained
|
||||||
|
# in these scripts will be unencrypted
|
||||||
|
|
||||||
|
# NuGet Packages
|
||||||
|
# NuGet Symbol Packages
|
||||||
|
# The packages folder can be ignored because of Package Restore
|
||||||
|
# except build/, which is used as an MSBuild target.
|
||||||
|
# Uncomment if necessary however generally it will be regenerated when needed
|
||||||
|
# NuGet v3's project.json files produces more ignorable files
|
||||||
|
|
||||||
|
# Microsoft Azure Build Output
|
||||||
|
|
||||||
|
# Microsoft Azure Emulator
|
||||||
|
|
||||||
|
# Windows Store app package directories and files
|
||||||
|
|
||||||
|
# Visual Studio cache files
|
||||||
|
# files ending in .cache can be ignored
|
||||||
|
# but keep track of directories ending in .cache
|
||||||
|
|
||||||
|
# Others
|
||||||
|
|
||||||
|
# Including strong name files can present a security risk
|
||||||
|
# (https://github.com/github/gitignore/pull/2483#issue-259490424)
|
||||||
|
|
||||||
|
# Since there are multiple workflows, uncomment next line to ignore bower_components
|
||||||
|
# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
|
||||||
|
|
||||||
|
# RIA/Silverlight projects
|
||||||
|
|
||||||
|
# Backup & report files from converting an old project file
|
||||||
|
# to a newer Visual Studio version. Backup files are not needed,
|
||||||
|
# because we have git ;-)
|
||||||
|
|
||||||
|
# SQL Server files
|
||||||
|
|
||||||
|
# Business Intelligence projects
|
||||||
|
|
||||||
|
# Microsoft Fakes
|
||||||
|
|
||||||
|
# GhostDoc plugin setting file
|
||||||
|
|
||||||
|
# Node.js Tools for Visual Studio
|
||||||
|
|
||||||
|
# Visual Studio 6 build log
|
||||||
|
|
||||||
|
# Visual Studio 6 workspace options file
|
||||||
|
|
||||||
|
# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
|
||||||
|
|
||||||
|
# Visual Studio 6 auto-generated project file (contains which files were open etc.)
|
||||||
|
|
||||||
|
# Visual Studio 6 workspace and project file (working project files containing files to include in project)
|
||||||
|
|
||||||
|
# Visual Studio 6 technical files
|
||||||
|
|
||||||
|
# Visual Studio LightSwitch build output
|
||||||
|
|
||||||
|
# Paket dependency manager
|
||||||
|
|
||||||
|
# FAKE - F# Make
|
||||||
|
|
||||||
|
# CodeRush personal settings
|
||||||
|
|
||||||
|
# Python Tools for Visual Studio (PTVS)
|
||||||
|
|
||||||
|
# Cake - Uncomment if you are using it
|
||||||
|
# tools/**
|
||||||
|
# !tools/packages.config
|
||||||
|
|
||||||
|
# Tabs Studio
|
||||||
|
|
||||||
|
# Telerik's JustMock configuration file
|
||||||
|
|
||||||
|
# BizTalk build output
|
||||||
|
|
||||||
|
# OpenCover UI analysis results
|
||||||
|
|
||||||
|
# Azure Stream Analytics local run output
|
||||||
|
|
||||||
|
# MSBuild Binary and Structured Log
|
||||||
|
|
||||||
|
# NVidia Nsight GPU debugger configuration file
|
||||||
|
|
||||||
|
# MFractors (Xamarin productivity tool) working folder
|
||||||
|
|
||||||
|
# Local History for Visual Studio
|
||||||
|
|
||||||
|
# Visual Studio History (VSHistory) files
|
||||||
|
|
||||||
|
# BeatPulse healthcheck temp database
|
||||||
|
|
||||||
|
# Backup folder for Package Reference Convert tool in Visual Studio 2017
|
||||||
|
|
||||||
|
# Ionide (cross platform F# VS Code tools) working folder
|
||||||
|
|
||||||
|
# Fody - auto-generated XML schema
|
||||||
|
|
||||||
|
# VS Code files for those working on multiple tools
|
||||||
|
|
||||||
|
# Local History for Visual Studio Code
|
||||||
|
|
||||||
|
# Windows Installer files from build outputs
|
||||||
|
|
||||||
|
# JetBrains Rider
|
||||||
|
|
||||||
|
### VisualStudio Patch ###
|
||||||
|
# Additional files built by Visual Studio
|
||||||
|
|
||||||
|
# End of https://www.toptal.com/developers/gitignore/api/rider,visualstudiocode,dotnetcore,csharp,visualstudio
|
||||||
13
.idea/.idea.EndMove.Sudoku.Solver/.idea/.gitignore
vendored
Normal file
13
.idea/.idea.EndMove.Sudoku.Solver/.idea/.gitignore
vendored
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
# Default ignored files
|
||||||
|
/shelf/
|
||||||
|
/workspace.xml
|
||||||
|
# Rider ignored files
|
||||||
|
/projectSettingsUpdater.xml
|
||||||
|
/modules.xml
|
||||||
|
/contentModel.xml
|
||||||
|
/.idea.EndMove.Sudoku.Solver.iml
|
||||||
|
# Editor-based HTTP Client requests
|
||||||
|
/httpRequests/
|
||||||
|
# Datasource local storage ignored files
|
||||||
|
/dataSources/
|
||||||
|
/dataSources.local.xml
|
||||||
4
.idea/.idea.EndMove.Sudoku.Solver/.idea/encodings.xml
Normal file
4
.idea/.idea.EndMove.Sudoku.Solver/.idea/encodings.xml
Normal file
@ -0,0 +1,4 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
|
||||||
|
</project>
|
||||||
8
.idea/.idea.EndMove.Sudoku.Solver/.idea/indexLayout.xml
Normal file
8
.idea/.idea.EndMove.Sudoku.Solver/.idea/indexLayout.xml
Normal file
@ -0,0 +1,8 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="UserContentModel">
|
||||||
|
<attachedFolders />
|
||||||
|
<explicitIncludes />
|
||||||
|
<explicitExcludes />
|
||||||
|
</component>
|
||||||
|
</project>
|
||||||
@ -0,0 +1,39 @@
|
|||||||
|
<component name="InspectionProjectProfileManager">
|
||||||
|
<profile version="1.0">
|
||||||
|
<option name="myName" value="Project Default" />
|
||||||
|
<inspection_tool class="PyPackageRequirementsInspection" enabled="true" level="WARNING" enabled_by_default="true">
|
||||||
|
<option name="ignoredPackages">
|
||||||
|
<value>
|
||||||
|
<list size="1">
|
||||||
|
<item index="0" class="java.lang.String" itemvalue="socketserver" />
|
||||||
|
</list>
|
||||||
|
</value>
|
||||||
|
</option>
|
||||||
|
</inspection_tool>
|
||||||
|
<inspection_tool class="PyPep8NamingInspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
|
||||||
|
<option name="ignoredErrors">
|
||||||
|
<list>
|
||||||
|
<option value="N802" />
|
||||||
|
</list>
|
||||||
|
</option>
|
||||||
|
</inspection_tool>
|
||||||
|
<inspection_tool class="VulnerableLibrariesLocal" enabled="true" level="WARNING" enabled_by_default="true">
|
||||||
|
<option name="isIgnoringEnabled" value="true" />
|
||||||
|
<option name="ignoredModules">
|
||||||
|
<list>
|
||||||
|
<option value="poc-flux-mjpeg" />
|
||||||
|
</list>
|
||||||
|
</option>
|
||||||
|
<option name="ignoredPackages">
|
||||||
|
<list>
|
||||||
|
<option value="null:opencv-python:4.9.0.80" />
|
||||||
|
</list>
|
||||||
|
</option>
|
||||||
|
<option name="ignoredReasons">
|
||||||
|
<list>
|
||||||
|
<option value="Not exploitable" />
|
||||||
|
</list>
|
||||||
|
</option>
|
||||||
|
</inspection_tool>
|
||||||
|
</profile>
|
||||||
|
</component>
|
||||||
7
.idea/.idea.EndMove.Sudoku.Solver/.idea/misc.xml
Normal file
7
.idea/.idea.EndMove.Sudoku.Solver/.idea/misc.xml
Normal file
@ -0,0 +1,7 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="DiscordProjectSettings">
|
||||||
|
<option name="show" value="ASK" />
|
||||||
|
<option name="description" value="" />
|
||||||
|
</component>
|
||||||
|
</project>
|
||||||
6
.idea/.idea.EndMove.Sudoku.Solver/.idea/vcs.xml
Normal file
6
.idea/.idea.EndMove.Sudoku.Solver/.idea/vcs.xml
Normal file
@ -0,0 +1,6 @@
|
|||||||
|
<?xml version="1.0" encoding="UTF-8"?>
|
||||||
|
<project version="4">
|
||||||
|
<component name="VcsDirectoryMappings">
|
||||||
|
<mapping directory="$PROJECT_DIR$" vcs="Git" />
|
||||||
|
</component>
|
||||||
|
</project>
|
||||||
20
.run/EndMove.Sudoku.Solver.Core.run.xml
Normal file
20
.run/EndMove.Sudoku.Solver.Core.run.xml
Normal file
@ -0,0 +1,20 @@
|
|||||||
|
<component name="ProjectRunConfigurationManager">
|
||||||
|
<configuration default="false" name="EndMove.Sudoku.Solver.Core" type="DotNetProject" factoryName=".NET Project">
|
||||||
|
<option name="EXE_PATH" value="$PROJECT_DIR$/src/EndMove.Sudoku.Solver.Core/bin/Debug/net8.0/EndMove.Sudoku.Solver.Core.exe" />
|
||||||
|
<option name="PROGRAM_PARAMETERS" value="" />
|
||||||
|
<option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/src/EndMove.Sudoku.Solver.Core/bin/Debug/net8.0" />
|
||||||
|
<option name="PASS_PARENT_ENVS" value="1" />
|
||||||
|
<option name="USE_EXTERNAL_CONSOLE" value="0" />
|
||||||
|
<option name="USE_MONO" value="0" />
|
||||||
|
<option name="RUNTIME_ARGUMENTS" value="" />
|
||||||
|
<option name="PROJECT_PATH" value="$PROJECT_DIR$/src/EndMove.Sudoku.Solver.Core/EndMove.Sudoku.Solver.Core.csproj" />
|
||||||
|
<option name="PROJECT_EXE_PATH_TRACKING" value="1" />
|
||||||
|
<option name="PROJECT_ARGUMENTS_TRACKING" value="1" />
|
||||||
|
<option name="PROJECT_WORKING_DIRECTORY_TRACKING" value="1" />
|
||||||
|
<option name="PROJECT_KIND" value="DotNetCore" />
|
||||||
|
<option name="PROJECT_TFM" value="net8.0" />
|
||||||
|
<method v="2">
|
||||||
|
<option name="Build" />
|
||||||
|
</method>
|
||||||
|
</configuration>
|
||||||
|
</component>
|
||||||
21
EndMove.Sudoku.Solver.sln
Normal file
21
EndMove.Sudoku.Solver.sln
Normal file
@ -0,0 +1,21 @@
|
|||||||
|
|
||||||
|
Microsoft Visual Studio Solution File, Format Version 12.00
|
||||||
|
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{67AA5CD2-BE13-4741-8F70-4FE3638271E4}"
|
||||||
|
EndProject
|
||||||
|
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EndMove.Sudoku.Solver.Core", "src\EndMove.Sudoku.Solver.Core\EndMove.Sudoku.Solver.Core.csproj", "{2A444DA7-B235-4419-8B31-F9A554496D8E}"
|
||||||
|
EndProject
|
||||||
|
Global
|
||||||
|
GlobalSection(SolutionConfigurationPlatforms) = preSolution
|
||||||
|
Debug|Any CPU = Debug|Any CPU
|
||||||
|
Release|Any CPU = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(ProjectConfigurationPlatforms) = postSolution
|
||||||
|
{2A444DA7-B235-4419-8B31-F9A554496D8E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||||
|
{2A444DA7-B235-4419-8B31-F9A554496D8E}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||||
|
{2A444DA7-B235-4419-8B31-F9A554496D8E}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||||
|
{2A444DA7-B235-4419-8B31-F9A554496D8E}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||||
|
EndGlobalSection
|
||||||
|
GlobalSection(NestedProjects) = preSolution
|
||||||
|
{2A444DA7-B235-4419-8B31-F9A554496D8E} = {67AA5CD2-BE13-4741-8F70-4FE3638271E4}
|
||||||
|
EndGlobalSection
|
||||||
|
EndGlobal
|
||||||
3
README.md
Normal file
3
README.md
Normal file
@ -0,0 +1,3 @@
|
|||||||
|
# Sudoku Solver Algorithms
|
||||||
|
|
||||||
|
This repository contains a collection of algorithms to solve Sudoku puzzles. The algorithms are implemented in C# and are base on existing methods and new ideas.
|
||||||
@ -0,0 +1,50 @@
|
|||||||
|
namespace EndMove.Sudoku.Solver.Core.Algorithms;
|
||||||
|
|
||||||
|
public class BackTrackingSolver : SolverBase
|
||||||
|
{
|
||||||
|
public BackTrackingSolver(Action<int[,]> displayBoard) : base(displayBoard) { }
|
||||||
|
|
||||||
|
public override (bool, int[,]) Solve(int[,] board)
|
||||||
|
{
|
||||||
|
int row = -1, col = -1;
|
||||||
|
bool completed = true;
|
||||||
|
for (int y = 0; y < 9; y++)
|
||||||
|
{
|
||||||
|
for (int x = 0; x < 9; x++)
|
||||||
|
{
|
||||||
|
if (board[y, x] != 0) continue;
|
||||||
|
row = y;
|
||||||
|
col = x;
|
||||||
|
completed = false;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (!completed) break;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (completed)
|
||||||
|
{
|
||||||
|
return (true , board);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (int n = 1; n <= 9; n++)
|
||||||
|
{
|
||||||
|
// Check if the wanted assignment is valid
|
||||||
|
if (!IsValid(board, row, col, n)) continue;
|
||||||
|
// Then assign display and continue solving
|
||||||
|
board[row, col] = n;
|
||||||
|
DisplayBoard(board);
|
||||||
|
var (isSolved, solvedBoard) = Solve(board);
|
||||||
|
// If the board is solved, return it
|
||||||
|
if (isSolved) return (true, solvedBoard);
|
||||||
|
// Otherwise, backtrack (reset the cell to a ready to work value)
|
||||||
|
board[row, col] = 0;
|
||||||
|
}
|
||||||
|
return (false, board);
|
||||||
|
}
|
||||||
|
|
||||||
|
public override (bool, int[]) Solve(int[] board)
|
||||||
|
{
|
||||||
|
// TODO
|
||||||
|
throw new NotImplementedException();
|
||||||
|
}
|
||||||
|
}
|
||||||
38
src/EndMove.Sudoku.Solver.Core/Algorithms/ISolver.cs
Normal file
38
src/EndMove.Sudoku.Solver.Core/Algorithms/ISolver.cs
Normal file
@ -0,0 +1,38 @@
|
|||||||
|
namespace EndMove.Sudoku.Solver.Core.Algorithms;
|
||||||
|
|
||||||
|
public interface ISolver
|
||||||
|
{
|
||||||
|
/// <summary>
|
||||||
|
/// Check if a number is valid in a cell
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="board">The sudoku board (2D Board)</param>
|
||||||
|
/// <param name="row">New number in x</param>
|
||||||
|
/// <param name="col">New number in y</param>
|
||||||
|
/// <param name="n">New number value</param>
|
||||||
|
/// <returns>True if valid, False otherwise</returns>
|
||||||
|
public bool IsValid(int[,] board, int row, int col, int n);
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Check if a number is valid in a cell
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="board">The sudoku board (1D Board)</param>
|
||||||
|
/// <param name="row">New number in x</param>
|
||||||
|
/// <param name="col">New number in y</param>
|
||||||
|
/// <param name="n">New number value</param>
|
||||||
|
/// <returns>True if valid, False otherwise</returns>
|
||||||
|
public bool IsValid(int[] board, int row, int col, int n);
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Solve the sudoku board
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="board">Initial board</param>
|
||||||
|
/// <returns>Is solved, solved board</returns>
|
||||||
|
public (bool, int[,]) Solve(int[,] board);
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Solve the sudoku board with a 1D array
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="board">Initial board</param>
|
||||||
|
/// <returns>Is solved, solved board</returns>
|
||||||
|
public (bool, int[]) Solve(int[] board);
|
||||||
|
}
|
||||||
48
src/EndMove.Sudoku.Solver.Core/Algorithms/SolverBase.cs
Normal file
48
src/EndMove.Sudoku.Solver.Core/Algorithms/SolverBase.cs
Normal file
@ -0,0 +1,48 @@
|
|||||||
|
namespace EndMove.Sudoku.Solver.Core.Algorithms;
|
||||||
|
|
||||||
|
public abstract class SolverBase : ISolver
|
||||||
|
{
|
||||||
|
internal readonly Action<int[,]> DisplayBoard;
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Constructor for base solver algorithms
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="displayBoard">Method to display board in terminal or other</param>
|
||||||
|
protected SolverBase(Action<int[,]> displayBoard)
|
||||||
|
{
|
||||||
|
DisplayBoard = displayBoard;
|
||||||
|
}
|
||||||
|
|
||||||
|
public virtual bool IsValid(int[,] board, int row, int col, int n)
|
||||||
|
{
|
||||||
|
// Check Col, Row
|
||||||
|
for (int i = 0; i < 9; i++)
|
||||||
|
{
|
||||||
|
if (board[row, i] == n || board[i, col] == n)
|
||||||
|
{
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Check Box
|
||||||
|
int xSize = (col / 3) * 3, ySize = (row / 3) * 3;
|
||||||
|
for (int y = 0; y < 3; y++)
|
||||||
|
{
|
||||||
|
for (int x = 0; x < 3; x++)
|
||||||
|
{
|
||||||
|
if (board[ySize + y, xSize + x] == n)
|
||||||
|
{
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
public virtual bool IsValid(int[] board, int row, int col, int n)
|
||||||
|
{
|
||||||
|
throw new NotImplementedException();
|
||||||
|
}
|
||||||
|
|
||||||
|
public abstract (bool, int[,]) Solve(int[,] board);
|
||||||
|
public abstract (bool, int[]) Solve(int[] board);
|
||||||
|
}
|
||||||
70
src/EndMove.Sudoku.Solver.Core/Common/SudokuStore.cs
Normal file
70
src/EndMove.Sudoku.Solver.Core/Common/SudokuStore.cs
Normal file
@ -0,0 +1,70 @@
|
|||||||
|
namespace EndMove.Sudoku.Solver.Core;
|
||||||
|
|
||||||
|
// PS: I know this class isn't useful at all, I just wanted to play a bit more
|
||||||
|
public class SudokuStore
|
||||||
|
{
|
||||||
|
private readonly List<int[,]> _sudokuBoards;
|
||||||
|
|
||||||
|
public SudokuStore()
|
||||||
|
{
|
||||||
|
_sudokuBoards = new List<int[,]>();
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add multiple Sudoku boards
|
||||||
|
public void AddBoard(params int[][,] boards)
|
||||||
|
{
|
||||||
|
foreach (var board in boards)
|
||||||
|
{
|
||||||
|
AddBoard(board);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add a new Sudoku board
|
||||||
|
public void AddBoard(int[,] board)
|
||||||
|
{
|
||||||
|
if (board.GetLength(0) != 9 || board.GetLength(1) != 9)
|
||||||
|
{
|
||||||
|
throw new ArgumentException("Board must be a 9x9 grid.");
|
||||||
|
}
|
||||||
|
_sudokuBoards.Add((int[,])board.Clone());
|
||||||
|
}
|
||||||
|
|
||||||
|
// Remove a Sudoku board by index
|
||||||
|
public void RemoveBoard(int index)
|
||||||
|
{
|
||||||
|
if (index < 0 || index >= _sudokuBoards.Count)
|
||||||
|
{
|
||||||
|
throw new ArgumentOutOfRangeException(nameof(index), "Invalid board index.");
|
||||||
|
}
|
||||||
|
_sudokuBoards.RemoveAt(index);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Get the count of stored Sudoku boards
|
||||||
|
public int Count => _sudokuBoards.Count;
|
||||||
|
|
||||||
|
// Indexer to access Sudoku boards by index
|
||||||
|
public int[,] this[int index]
|
||||||
|
{
|
||||||
|
get
|
||||||
|
{
|
||||||
|
if (index < 0 || index >= _sudokuBoards.Count)
|
||||||
|
{
|
||||||
|
throw new ArgumentOutOfRangeException(nameof(index), "Invalid board index.");
|
||||||
|
}
|
||||||
|
return (int[,])_sudokuBoards[index].Clone();
|
||||||
|
}
|
||||||
|
set
|
||||||
|
{
|
||||||
|
if (index < 0 || index >= _sudokuBoards.Count)
|
||||||
|
{
|
||||||
|
throw new ArgumentOutOfRangeException(nameof(index), "Invalid board index.");
|
||||||
|
}
|
||||||
|
|
||||||
|
if (value.GetLength(0) != 9 || value.GetLength(1) != 9)
|
||||||
|
{
|
||||||
|
throw new ArgumentException("Board must be a 9x9 grid.");
|
||||||
|
}
|
||||||
|
_sudokuBoards[index] = (int[,])value.Clone();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
58
src/EndMove.Sudoku.Solver.Core/Common/SudokuUtils.cs
Normal file
58
src/EndMove.Sudoku.Solver.Core/Common/SudokuUtils.cs
Normal file
@ -0,0 +1,58 @@
|
|||||||
|
namespace EndMove.Sudoku.Solver.Core.Common;
|
||||||
|
|
||||||
|
public static class SudokuUtils
|
||||||
|
{
|
||||||
|
/// <summary>
|
||||||
|
/// Convert a 2D board to a 1D board
|
||||||
|
/// </summary>
|
||||||
|
/// <param name="board">2D Board</param>
|
||||||
|
/// <param name="newBoard">1D Board</param>
|
||||||
|
public static void TwoDTo1D(int[,] board, out int[] newBoard)
|
||||||
|
{
|
||||||
|
int rows = board.GetLength(0), cols = board.GetLength(1);
|
||||||
|
newBoard = new int[rows * cols];
|
||||||
|
for (int i = 0; i < rows; i++)
|
||||||
|
{
|
||||||
|
for (int j = 0; j < cols; j++)
|
||||||
|
{
|
||||||
|
newBoard[i * cols + j] = board[i, j];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Display the board in the terminal (1D Board)
|
||||||
|
public static void DisplayBoard(int[] board)
|
||||||
|
{
|
||||||
|
const string separator = "+---+---+---+---+---+---+---+---+---+";
|
||||||
|
for (int i = 0; i < 81; i++)
|
||||||
|
{
|
||||||
|
if (i % 27 == 0)
|
||||||
|
{
|
||||||
|
Console.WriteLine(separator);
|
||||||
|
}
|
||||||
|
Console.Write("{0} {1} ", (i % 3 == 0) ? '|' : ' ', board[i] == 0 ? "*" : board[i]);
|
||||||
|
if (i % 9 == 8) Console.WriteLine("|");
|
||||||
|
}
|
||||||
|
Console.WriteLine(separator);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Display the board in the terminal (2D Board)
|
||||||
|
public static void DisplayBoard(int[,] board)
|
||||||
|
{
|
||||||
|
const string separator = "+---+---+---+---+---+---+---+---+---+";
|
||||||
|
Console.WriteLine(separator);
|
||||||
|
for (int i = 0; i < 9; i++)
|
||||||
|
{
|
||||||
|
Console.Write("|");
|
||||||
|
for (int j = 0; j < 9; j++)
|
||||||
|
{
|
||||||
|
Console.Write(" {0} {1}", board[i, j] == 0 ? "*" : board[i, j], ((j + 1) % 3 == 0) ? '|' : ' ');
|
||||||
|
}
|
||||||
|
Console.WriteLine();
|
||||||
|
if ((i + 1) % 3 == 0)
|
||||||
|
{
|
||||||
|
Console.WriteLine(separator);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
@ -0,0 +1,10 @@
|
|||||||
|
<Project Sdk="Microsoft.NET.Sdk">
|
||||||
|
|
||||||
|
<PropertyGroup>
|
||||||
|
<OutputType>Exe</OutputType>
|
||||||
|
<TargetFramework>net8.0</TargetFramework>
|
||||||
|
<ImplicitUsings>enable</ImplicitUsings>
|
||||||
|
<Nullable>enable</Nullable>
|
||||||
|
</PropertyGroup>
|
||||||
|
|
||||||
|
</Project>
|
||||||
68
src/EndMove.Sudoku.Solver.Core/Program.cs
Normal file
68
src/EndMove.Sudoku.Solver.Core/Program.cs
Normal file
@ -0,0 +1,68 @@
|
|||||||
|
using EndMove.Sudoku.Solver.Core.Algorithms;
|
||||||
|
using EndMove.Sudoku.Solver.Core.Common;
|
||||||
|
|
||||||
|
namespace EndMove.Sudoku.Solver.Core
|
||||||
|
{
|
||||||
|
public static class Program
|
||||||
|
{
|
||||||
|
public static void Main(string[] args)
|
||||||
|
{
|
||||||
|
var store = new SudokuStore();
|
||||||
|
store.AddBoard(new[,]
|
||||||
|
{
|
||||||
|
{ 5, 3, 0, 0, 7, 0, 0, 0, 0 },
|
||||||
|
{ 6, 0, 0, 1, 9, 5, 0, 0, 0 },
|
||||||
|
{ 0, 9, 8, 0, 0, 0, 0, 6, 0 },
|
||||||
|
{ 8, 0, 0, 0, 6, 0, 0, 0, 3 },
|
||||||
|
{ 4, 0, 0, 8, 0, 3, 0, 0, 1 },
|
||||||
|
{ 7, 0, 0, 0, 2, 0, 0, 0, 6 },
|
||||||
|
{ 0, 6, 0, 0, 0, 0, 2, 8, 0 },
|
||||||
|
{ 0, 0, 0, 4, 1, 9, 0, 0, 5 },
|
||||||
|
{ 0, 0, 0, 0, 8, 0, 0, 7, 9 }
|
||||||
|
}, new[,]
|
||||||
|
{
|
||||||
|
{ 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 }
|
||||||
|
},
|
||||||
|
new[,]
|
||||||
|
{
|
||||||
|
{ 0, 0, 5, 3, 0, 0, 0, 0, 0 },
|
||||||
|
{ 8, 0, 0, 0, 0, 0, 0, 2, 0 },
|
||||||
|
{ 0, 7, 0, 0, 1, 0, 5, 0, 0 },
|
||||||
|
{ 4, 0, 0, 0, 0, 5, 3, 0, 0 },
|
||||||
|
{ 0, 1, 0, 0, 7, 0, 0, 0, 6 },
|
||||||
|
{ 0, 0, 3, 2, 0, 0, 0, 8, 0 },
|
||||||
|
{ 0, 6, 0, 5, 0, 0, 0, 0, 9 },
|
||||||
|
{ 0, 0, 4, 0, 0, 0, 0, 3, 0 },
|
||||||
|
{ 0, 0, 0, 0, 0, 9, 7, 0, 0 }
|
||||||
|
},
|
||||||
|
new[,]
|
||||||
|
{
|
||||||
|
{ 0, 0, 0, 0, 0, 7, 0, 9, 0 },
|
||||||
|
{ 2, 0, 0, 0, 0, 8, 0, 0, 0 },
|
||||||
|
{ 0, 3, 0, 0, 0, 0, 0, 6, 0 },
|
||||||
|
{ 0, 0, 0, 5, 0, 0, 0, 0, 9 },
|
||||||
|
{ 0, 0, 1, 0, 0, 0, 0, 0, 0 },
|
||||||
|
{ 9, 0, 0, 0, 0, 0, 0, 0, 0 },
|
||||||
|
{ 0, 0, 0, 0, 0, 0, 0, 0, 0 },
|
||||||
|
{ 0, 0, 0, 0, 6, 0, 0, 0, 0 },
|
||||||
|
{ 0, 5, 0, 0, 9, 0, 0, 0, 0 }
|
||||||
|
});
|
||||||
|
|
||||||
|
SudokuUtils.TwoDTo1D(store[0], out int[] sudoku1D);
|
||||||
|
SudokuUtils.DisplayBoard(sudoku1D);
|
||||||
|
// TODO 1D solver with backtracking
|
||||||
|
|
||||||
|
ISolver solver = new BackTrackingSolver(SudokuUtils.DisplayBoard);
|
||||||
|
var (status, lol) = solver.Solve(store[0]);
|
||||||
|
Console.WriteLine(status);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user