#include <iostream>

using namespace std;

const int max_array =10;

    // fall til ad reikna move x sem kallar a sig sjalft ef illegal move

    void x_move(char tic_tac_toe[], char x_input) {
    cout << "X position: ";
    cin >> x_input;

        if (x_input =1) {
            if (tic_tac_toe[1]=49) {
                tic_tac_toe[1]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
        }
    }
        else if (x_input =2) {
            if (tic_tac_toe[2]=50) {
                tic_tac_toe[2]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
    }
        else if (x_input =3) {
            if (tic_tac_toe[3]=51) {
                tic_tac_toe[3]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
    }
        else if (x_input =4) {
            if (tic_tac_toe[4]=52) {
                    tic_tac_toe[4]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
    }
        else if (x_input =5) {
            if (tic_tac_toe[5]=53) {
                    tic_tac_toe[5]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
        }
        else if (x_input =6) {
            if (tic_tac_toe[6]=54) {
                    tic_tac_toe[6]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
        }
    }
        else if (x_input =7) {
            if (tic_tac_toe[7]=55) {
                tic_tac_toe[7]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
    }
        else if (x_input =8) {
            if (tic_tac_toe[8]=56) {
                tic_tac_toe[8]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);
            }
    }
        else if (x_input =9) {
            if (tic_tac_toe[9]=57) {
                tic_tac_toe[9]='X';
        }
            else {
                cout << "Illegal move!" << endl;
                x_move(tic_tac_toe, x_input);

            }
    }

    }
// alveg eins fall fyrir O
        void o_move(char tic_tac_toe[], char o_input) {
    cout << "O position: ";
    cin >> o_input;

        if (o_input =1) {
            if (tic_tac_toe[1]=49) {
                tic_tac_toe[1]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
        }
    }
        else if (o_input =2) {
            if (tic_tac_toe[2]=50) {
                tic_tac_toe[2]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }
        else if (o_input =3) {
            if (tic_tac_toe[3]=51) {
                    tic_tac_toe[3]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }
        else if (o_input =4) {
            if (tic_tac_toe[4]=52) {
                    tic_tac_toe[4]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }
        else if (o_input =5) {
            if (tic_tac_toe[5]=53) {
                    tic_tac_toe[5]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
        }

        else if (o_input =6) {
            if (tic_tac_toe[6]=54) {
                    tic_tac_toe[6]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
        }
    }
        else if (o_input =7) {
            if (tic_tac_toe[7]=55) {
                tic_tac_toe[7]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }
        else if (o_input =8) {
            if (tic_tac_toe[8]=56) {
                tic_tac_toe[8]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }
        else if (o_input =9) {
            if (tic_tac_toe[9]=57) {
                tic_tac_toe[9]='O';
        }
            else {
                cout << "Illegal move!" << endl;
                o_move(tic_tac_toe, o_input);
            }
    }

    }
//fall til ad tjekka hvort x se buinn ad vinna
bool did_x_win (char tic_tac_toe[]) {
    if (tic_tac_toe[1]='X' && tic_tac_toe[2]='X' && tic_tac_toe[3]='X'){
        return true;
    }
    else if (tic_tac_toe[4]='X' && tic_tac_toe[5]='X' && tic_tac_toe[6]='X'){
        return true;
    }
    else if (tic_tac_toe[7]='X' && tic_tac_toe[8]='X' && tic_tac_toe[9]='X'){
        return true;
    }
    else if (tic_tac_toe[1]='X' && tic_tac_toe[4]='X' && tic_tac_toe[7]='X'){
        return true;
    }
    else if (tic_tac_toe[2]='X' && tic_tac_toe[5]='X' && tic_tac_toe[8]='X'){
        return true;
    }
    else if (tic_tac_toe[3]='X' && tic_tac_toe[6]='X' && tic_tac_toe[9]='X'){
        return true;
    }
    else if (tic_tac_toe[1]='X' && tic_tac_toe[5]='X' && tic_tac_toe[9]='X'){
        return true;
    }
    else if (tic_tac_toe[3]='X' && tic_tac_toe[5]='X' && tic_tac_toe[7]='X'){
        return true;
    }
    else {
        return false;
    }

}

// alveg eins fall fyrir O
bool did_o_win (char tic_tac_toe[]) {
    if (tic_tac_toe[1]='O' && tic_tac_toe[2]='O' && tic_tac_toe[3]='O'){
        return true;
    }
    else if (tic_tac_toe[4]='O' && tic_tac_toe[5]='O' && tic_tac_toe[6]='O'){
        return true;
    }
    else if (tic_tac_toe[7]='O' && tic_tac_toe[8]='O' && tic_tac_toe[9]='O'){
        return true;
    }
    else if (tic_tac_toe[1]='O' && tic_tac_toe[4]='O' && tic_tac_toe[7]='O'){
        return true;
    }
    else if (tic_tac_toe[2]='O' && tic_tac_toe[5]='O' && tic_tac_toe[8]='O'){
        return true;
    }
    else if (tic_tac_toe[3]='O' && tic_tac_toe[6]='O' && tic_tac_toe[9]='O'){
        return true;
    }
    else if (tic_tac_toe[1]='O' && tic_tac_toe[5]='O' && tic_tac_toe[9]='O'){
        return true;
    }
    else if (tic_tac_toe[3]='O' && tic_tac_toe[5]='O' && tic_tac_toe[7]='O'){
        return true;
    }
    else {
        return false;
    }

}

// fall til ad prenta fylkid
void print_board (char tic_tac_toe[]){
    cout << tic_tac_toe[1] << " " << tic_tac_toe[2] << " " << tic_tac_toe[3] << endl;
    cout << tic_tac_toe[4] << " " << tic_tac_toe[5] << " " << tic_tac_toe[6] << endl;
    cout << tic_tac_toe[7] << " " << tic_tac_toe[8] << " " << tic_tac_toe[9] << endl;
}

int main()
{
    // búa til fylki af staerd 10 og fylla thad (hunsa 0)
    char tic_tac_toe[max_array];
    tic_tac_toe[1]=49;
    tic_tac_toe[2]=50;
    tic_tac_toe[3]=51;
    tic_tac_toe[4]=52;
    tic_tac_toe[5]=53;
    tic_tac_toe[6]=54;
    tic_tac_toe[7]=55;
    tic_tac_toe[8]=56;
    tic_tac_toe[9]=57;

    print_board(tic_tac_toe);


    //búa til bool gildi sem tjekkar hvort leikurinn sé búinn
    bool is_game_over = false;

    // prompta x fyrst og svo o, muna ad tjekka bool á milli og eftir o
    char x_input;
    char o_input;


    cout << tic_tac_toe[1] << " " << tic_tac_toe[2] << " " << tic_tac_toe[3] << endl;
    cout << tic_tac_toe[4] << " " << tic_tac_toe[5] << " " << tic_tac_toe[6] << endl;
    cout << tic_tac_toe[7] << " " << tic_tac_toe[8] << " " << tic_tac_toe[9] << endl;







}