Den stora tråden för snabba nybörjarfrågor

if (val == 1) {
    // kod
}

#include <iostream>
#include <string>

using namespace std;

enum TicTacToeCases {
        PLAYER_ONE = 'O',
        PLAYER_TWO = 'X',
        NEUTRAL    = '*'
    };

int main(){

    int decide;

    TicTacToeCases ticTacToe[3][3];
    for (int i = 0; i < 3; i++){
        for (int j = 0; j < 3; j++){
            ticTacToe[i][j] = NEUTRAL;
        }
    }
    for (int i = 0; i < 3; i++){
        for (int j = 0; j < 3; j++){
            cout<< ticTacToe[i][j]<< "   ";
        }
        cout<< "\n\n";
    }

    while (1){

        if (decide % 2 == 0){
            int i;
            int j;
            cout<< "Player one decide position\n";
            cin>> i;
            cin>> j;
            ticTacToe[i][j] = PLAYER_ONE;
            for (int i = 0; i < 3; i++){
                for (int j = 0; j < 3; j++){
                    cout<< ticTacToe[i][j]<< "   ";
                }
                cout<< "\n\n";
            }
        }

        if (decide % 2 == 1){
            int i;
            int j;
            cout<< "Player two decide position\n";
            cin>> i;
            cin>> j;
            ticTacToe[i][j] = PLAYER_TWO;
            for (int i = 0; i < 3; i++){
                for (int j = 0; j < 3; j++){
                    cout<< ticTacToe[i][j]<< "   ";
                }
                cout<< "\n\n";
            }
        }
        decide++;
    }
}