static void Main(string[] args)
{
// Setting the title of the console to "Sudoku Solver"
Console.Title = "Sudoku Solver";
// Defining an instance of the InputOutput class:
InputOutput inputOutput = new InputOutput();
// Printing an opening message to the user:
char InputMethod = inputOutput.PrintOpeningMessage();
// Getting the user's input. If the user's input is valid, str will contain
// the user's input. Otherwise, str will be an empty string - "":
string str = inputOutput.GetUserInput(InputMethod);
// Running in a continious while loop until the user hits 'x' which closes the program:
while (str != null)
{
// Unless we received error as the output from the functions, we will solve the
// board. However, if we received an error, then letting the user to retry input data:
if (str != "error" && str != "patherror")
{
// Saving the size of the the board (Example: 81 chars -> 9x9 -> size of board = 9):
int sizeOfBoard = (int)Math.Sqrt(str.Length);
// Creating a new instance of the GameBoard class, and inserting the string that
// the user inputted to the GameBoard's matrix of values. Afterwards, printing
// the board to the user by sending the gameBoard and false, which tells the function
// that the board isn't solved yet and that it should print the board with the
// line "Game Board" before:
GameBoard gameBoard = new GameBoard(new int[sizeOfBoard, sizeOfBoard], 0, 0, sizeOfBoard);
gameBoard.InsertValuesToBoard(str);
inputOutput.PrintBoard(gameBoard, false);
// Calling a function in gameBoard which fills in all the certain options
// which we can find based on checking every row, column and square:
gameBoard.FillCertainOptions();
// Calling the SolveBoard function and if it returns as true, then printing
// the solved board. Otherwise, letting the user know that the board that he
// entered couldn't be solved:
if (gameBoard.Solve(gameBoard))
{
// Printing the board by sending GameBoard and true which tells the function
// that the board is solved therefore it should print the board with the line
// "Solved Board" before:
inputOutput.PrintBoard(gameBoard, true);
}
else
{
Console.WriteLine("\n\tThe board you've entered couldn't be solved.");
}
}
// Asking the user to choose again what he would like to do, and then
// calling the functions accordingly in order to either continue or end the program:
InputMethod = inputOutput.GetInputMethod();
str = inputOutput.GetUserInput(InputMethod);
}
}