public void solve_sudoku(SudokuGrid sudoku, string puzzle_name, string output_dir = "")
{
if (!sudoku.Valid)
{
throw new Exception(("Invalid Sudoku input."));
}
var watch = System.Diagnostics.Stopwatch.StartNew();
var dlx = new DLX(new ColumnNode(-1));
dlx.createLinkedList(sudoku.Grid);
var algX = new AlgorithmX(dlx.h);
algX.search();
watch.Stop();
SudokuGrid solution = algX.Final_Solution;
var elapsedMs = watch.ElapsedMilliseconds;
if (solution != null)
{
Console.WriteLine(string.Format("Puzzle \"{0}\" Solution:", puzzle_name));
solution.print_grid();
Console.WriteLine(string.Format("Puzzle \"{0}\" was solved in: {1} milliseconds", puzzle_name, elapsedMs));
if (!String.IsNullOrWhiteSpace(output_dir))
{
Directory.CreateDirectory(output_dir);
var filename = string.Format("{0}.sln.txt", puzzle_name);
string path = Path.Combine(output_dir, filename);
Console.WriteLine(String.Format("Your solved puzzle has been saved to the file: {0}", Path.GetFullPath(path)));
solution.Save_File(path);
}
}
else
{
Console.WriteLine("Something went wrong and your puzzle could not be solved. Press any key to exit...");
Console.ReadLine();
}
}