I'm going through exercises of a C++ book. For each exercise I want to minimize the boilerplate code I have to write. I've set up my project a certain way but it doesn't seem right, and requires too many changes.

Right now I have a single main.cpp file with the following:

#include "e0614.h"
int main()
{
    E0614 ex;
    ex.solve();
}

Each time I create a new class from an exercise, I have to come and modify this file to change the name of the included header as well as the class i'm instantiating.

So my questions are:

1. Can I include all headers in the directory so at least I don't have to change the #include line?
2. Better yet, can I rewrite my solution so that I don't even have to touch main.cpp, without having one file with all the code for every exercise in it?