Untitled

// Online C++ compiler to run C++ program online
#include <iostream>
#include <vector>

using namespace std;

class TicTacToe {
private:
    vector<vector<int>> board;
    char currentPlayer;

public:
    TicTacToe() {
        board = vector<vector<int>>(3, vector<int>(3));
        int num = 1;
        for (int i = 0; i < 3; ++i) {
            for (int j = 0; j < 3; ++j) {
                board[i][j] = num++;
            }
        }
        currentPlayer = 'X';
    }

    void printBoard() {
        for (int i = 0; i < 3; ++i) {
            for (int j = 0; j < 3; ++j) {
                if (board[i][j] == 'X' || board[i][j] == 'O')
                    cout << (char)board[i][j];
                else
                    cout << board[i][j];
                if (j < 2) cout << " | ";
            }
            cout << endl;
            if (i < 2) cout << "--|---|--" << endl;
        }
    }

    bool makeMove(int choice) {
        int row = (choice - 1) / 3;
        int col = (choice - 1) % 3;

        if (choice < 1 || choice > 9 || board[row][col] == 'X' || board[row][col] == 'O') {
            cout << "Invalid move. Try again." << endl;
            return false;
        }
        board[row][col] = currentPlayer;
        return true;
    }

    bool checkWin() {
        for (int i = 0; i < 3; ++i) {
            if (board[i][0] == currentPlayer && board[i][1] == currentPlayer && board[i][2] == currentPlayer) return true;
            if (board[0][i] == currentPlayer && board[1][i] == currentPlayer && board[2][i] == currentPlayer) return true;
        }
        if (board[0][0] == currentPlayer && board[1][1] == currentPlayer && board[2][2] == currentPlayer) return true;
        if (board[0][2] == currentPlayer && board[1][1] == currentPlayer && board[2][0] == currentPlayer) return true;
        return false;
    }

    bool isDraw() {
        for (int i = 0; i < 3; ++i) {
            for (int j = 0; j < 3; ++j) {
                if (board[i][j] != 'X' && board[i][j] != 'O') return false;
            }
        }
        return true;
    }

    void switchPlayer() {
        currentPlayer = (currentPlayer == 'X') ? 'O' : 'X';
    }

    void playGame() {
        while (true) {
            printBoard();
            int choice;
            cout << "Player " << currentPlayer << "'s turn. Enter the number of the cell: ";
            cin >> choice;

            if (makeMove(choice)) {
                if (checkWin()) {
                    printBoard();
                    cout << "Player " << currentPlayer << " wins!" << endl;
                    break;
                } else if (isDraw()) {
                    printBoard();
                    cout << "It's a draw!" << endl;
                    break;
                }
                switchPlayer();
            }
        }
    }
};

int main() {
    TicTacToe game;
    game.playGame();
    return 0;
}