C++ what to code if i put a class after main() function

Question

I\'m watching some video tutorials on C++ and i know you must define a function / class before it is used or called. But I like having my main() function at the top, and eve

Answer 1

One scenario where the class definition after the main() function makes sense:

#include 
using namespace std;

void f();

int main()
{
    f();
    return 0;
}

class ClassOne
{
    public:
        void coolSaying()
        {
            cout << "Cool stuff yo!" << endl;
        }
};

void f()
{
    ClassOne one;
    one.coolSaying();
}