/*
* This code is released under the GNU General Public License.  See COPYING for
* details.  Copyright 2005 P. Jordan
* pmjordan@gmx.at
*/

#pragma once
#ifndef SUDOKU_H
#define SUDOKU_H

namespace sudoku
{

	class Sudoku
	{
		public:
		struct attempt
		{
			int value;
			int tries;
			int index;
			int row, col, box;
		};

		struct flags
		{
			char row[9][9];
			char col[9][9];
			char box[9][9];
		};

		static int solve(attempt stack[], int top, flags *flags, char visited[]);
		static int pint(const attempt stack[], const char visited[]);
		static int blank(char visited[], int blanks);
	};
}

#endif