password gen

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
    char password[8];

    srand(time(NULL));

    for (int i = 0; i < 8; i++)
    {
        int n = rand() % 3;

        if (n == 0)
        {
            int s = rand() % 10;
            password[i] = '0' + s;
        }

        if (n == 1)
        {
            int s = rand() % 26;
            password[i] = 'a' + s;
        }

        if (n == 2)
        {
            int s = rand() % 26;
            password[i] = 'A' + s;
        }
        n = 0;
    }

    cout << password << endl << "Quieres generar otra key? (Y or N)\n";
    char a;
    cin >> a;
    if ((a == 'Y') || (a == 'y'))
    {
        cout << endl;
        return(main());
    }

    else
    {
        return(0);
    }

    system("pause");
}