using System;

public class Program

{

​

        private static char[,] board = 

    {

        {' ', ' ', ' '},

        {' ', ' ', ' '},

        {' ', ' ', ' '}

    }; 

​

    private static char currentPlayer = 'X';

​

    public static void Main()

    {

        do

        {

            DrawBoard();

            GetPlayerMove();

        } while (!IsGameFinished());

​

        Console.ReadLine(); // Pause before closing the console window

    }

​

    private static void DrawBoard()

    {

        Console.Clear();

        Console.WriteLine("  0 1 2");

        for (int row = 0; row < 3; row++)

        {

            Console.Write(row + " ");

            for (int col = 0; col < 3; col++)

            {

                Console.Write(board[row, col]);

                if (col < 2)

                    Console.Write("|");

            }

            Console.WriteLine();

            if (row < 2)

                Console.WriteLine("  -----");

        }

    }

​

    private static void GetPlayerMove()

    {

        int row, col;

        do

        {

            Console.WriteLine("Player {currentPlayer}, enter your move (row and column): ");

            Console.Write("Row: ");

            row = int.Parse(Console.ReadLine());

            Console.Write("Column: ");

            col = int.Parse(Console.ReadLine());

        } while (!IsValidMove(row, col));

​

        board[row, col] = currentPlayer;

        SwitchPlayer();

    }

​

    private static bool IsValidMove(int row, int col)

    {

        if (row < 0 || row >= 3 || col < 0 || col >= 3 || board[row, col] != ' ')

        {

            Console.WriteLine("Invalid move. Try again.");

            return false;

        }

        return true;

    }

​

    private static bool IsGameFinished()

    {

        if (CheckForWinner())

        {

            DrawBoard();

            Console.WriteLine("Player {Player} wins!");

            return true;

        }

        else if (IsBoardFull())

        {

            DrawBoard();

            Console.WriteLine("It's a draw!");

            return true;

        }

        return false;

    }

​

    private static bool CheckForWinner()

    {

        // Check rows, columns, and diagonals for a winner

        for (int i = 0; i < 3; i++)

        {

            if (board[i, 0] == currentPlayer && board[i, 1] == currentPlayer && board[i, 2] == currentPlayer)

                return true; // Check rows

            if (board[0, i] == currentPlayer && board[1, i] == currentPlayer && board[2, i] == currentPlayer)

                return true; // Check columns

        }

​

        if (board[0, 0] == currentPlayer && board[1, 1] == currentPlayer && board[2, 2] == currentPlayer)

            return true; // Check diagonal (top-left to bottom-right)

​

        if (board[0, 2] == currentPlayer && board[1, 1] == currentPlayer && board[2, 0] == currentPlayer)

            return true; // Check diagonal (top-right to bottom-left)

​

        return false;

    }

​

    private static bool IsBoardFull()

    {

        // Check if the board is full (no empty spaces left)

        foreach (var cell in board)

        {

            if (cell == ' ')

                return false;

        }

        return true;

    }

​

    private static void SwitchPlayer()

    {

        // Switch the current player

        currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';

    }

}