A simple very tic tac toe program built using c++

SimpleTicTacToe.cpp

#include <iostream>

using namespace std;

char table[3][3] = {};

int checkTable(int sign) {
    int result = 0;
    if (
            table[0][0] == sign && table[0][1] == sign && table[0][2] == sign ||
            table[1][0] == sign && table[1][1] == sign && table[1][2] == sign ||
            table[2][0] == sign && table[2][1] == sign && table[2][2] == sign ||

            table[0][0] == sign && table[1][0] == sign && table[2][0] == sign ||
            table[0][1] == sign && table[1][1] == sign && table[2][1] == sign ||
            table[0][2] == sign && table[1][2] == sign && table[2][2] == sign ||

            table[0][0] == sign && table[1][1] == sign && table[2][2] == sign ||
            table[0][1] == sign && table[1][1] == sign && table[0][2] == sign
            ) result = 1;
    return result;
}

void updateTable(int row, int col, char isi) {
    table[row][col] = isi;
}

void drawTable() {
    cout << "    1  2  3" << endl;
    for (int i = 0; i < 3; i++) {
        cout << " " << (i + 1) << " ";
        for (int j = 0; j < 3; j++) printf("[%c]", table[i][j]);
        cout << endl;
    }
}

int main() {
    int row, col;
    char sign;
    cout << "===================" << endl << "Simple Tic Tac Toe" << endl << "===================" << endl;
    drawTable();

    for (int i = 1; i <= 9; i++) {
        if (i % 2 != 0) {
            sign = 'X';
            do {
                cout << "Player 1: ";
                do {
                    cin >> row >> col;
                    if (!(row >= 1 && row <= 3 || col >= 1 && col <= 3)) cout << ">>Please insert the correct coordinates (1-3, 1-3)!" << endl;
                } while (!(row >= 1 && row <= 3 || col >= 1 && col <= 3));
                row--; col--;
                if (table[row][col] == 'X' || table[row][col] == 'O') printf("That box has been filled!\n");
            } while (table[row][col] == 'X' || table[row][col] == 'O');

            updateTable(row, col, sign);
            if (checkTable(sign)) {
                drawTable();
                cout << ">>>Player 1 has won the round!" << endl; return 0;
            }
        }
        else {
            sign = 'O';
            do {
                cout << "Player 2: ";
                do {
                    cin >> row >> col;
                    if (!(row >= 1 && row <= 3 || col >= 1 && col <= 3)) cout << "Please insert the correct coordinates (1-3,1-3)!" << endl;
                } while (!(row >= 1 && row <= 3 || col >= 1 && col <= 3));
                row--; col--;
                if (table[row][col] == 'X' || table[row][col] == 'O') printf("That box has been filled!\n");
            } while (table[row][col] == 'X' || table[row][col] == 'O');

            updateTable(row, col, sign);
            if (checkTable(sign)) {
                drawTable();
                cout << ">>>Player 2 has won the round!" << endl; return 0;
            }
        }
        cout << endl;
        drawTable();
    }
}