geeksforgeeks 012-main函数能否被重载

#include <iostream>
using namespace std;
int (int a)
{
    cout << a << "n";
    return 0;
}
int (char *a)
{
    cout << a << endl;
    return 0;
}
int (int a, int b)
{
    cout << a << " " << b;
    return 0;
}
int ()
{
    main(3);
    main("C++");
    main(9, 6);
    return 0;
}