krestiki noliki)

#include <iostream>

using namespace std;
string board[9] = { " ", " ", " ", " ", " ", " ", " ", " ", " " };
void desk(string s = "What's your move, first player: ") {
    system("cls");
    cout << "~~KRESTIKI NOLIKI~~" << endl;
    cout << "Make your move, enter number of cell" << endl;
    cout << "~~~~~~~~~~~~~~~~~" << endl;
    cout << "  " << board[0] << "  |  " << board[1] << "  |  " << board[2] << endl;
    cout << "~~~~~~~~~~~~~~~~~" << endl;
    cout << "  " << board[3] << "  |  " << board[4] << "  |  " << board[5] << endl;
    cout << "~~~~~~~~~~~~~~~~~" << endl;
    cout << "  " << board[6] << "  |  " << board[7] << "  |  " << board[8] << endl;
    cout << "~~~~~~~~~~~~~~~~~" << endl;
    cout << s;
}

int pobeda() {
    if ((board[0] == board[1] && board[1] == board[2] && board[0] != " ") ||
        (board[3] == board[4] && board[4] == board[5] && board[3] != " ") ||
        (board[6] == board[7] && board[7] == board[8] && board[6] != " ") ||
        (board[0] == board[3] && board[3] == board[6] && board[0] != " ") ||
        (board[1] == board[4] && board[4] == board[7] && board[1] != " ") ||
        (board[2] == board[5] && board[5] == board[8] && board[2] != " ") ||
        (board[0] == board[4] && board[4] == board[8] && board[0] != " ") ||
        (board[6] == board[4] && board[4] == board[2] && board[6] != " ")) {
        return 1;
    }
    if (board[0] != " " && board[1] != " " && board[2] != " " && board[3] != " " && board[4] != " " && board[5] != " " && board[6] != " " && board[7] != " " && board[8] != " ") {
        return -1;
    }
    else {
        return 0;
    }
}

int main() {
    int a, n = 0, v = 0;
    desk();
    while (n != 9) {
        cin >> a;
        if (n % 2 == 0 && board[a - 1] == " " && a <= 9 && a >= 0) {
            board[a - 1] = "X";
            n++;
        }
        else if (n%2 != 0 && board[a-1] == " " && a <= 9 && a >= 0) {
            board[a - 1] = "O";
            n++;
        }
        else {
            desk("error, enter again: ");
            continue;
        }
        v++;
        if (v % 2 == 0) {
            desk("What's your move, first player: ");
        }
        if (v % 2 != 0) {
            desk("What's your move, second player: ");
        }
        int g = pobeda();
        if (g != 0) {
            if (g == 1 && v%2 != 0) {
                desk("WIN 1 PLAYER");
            }
            if (g == 1 && v % 2 == 0) {
                desk("WIN 2 PLAYER");
            }
            if (g == -1) {
                desk("TIE");
            }
            break;
        }
    }
    return 0;
}