title: Competitive programming header file
body: <p>In the book "Competitive programming 3", by the Halim brothers, it is stated that it would be best to insert all your macro's, includes and typedefs in a seperate file called 'competitive.h'. Then all you would have to do is include 'competitive.h' when you start coding. As I see it, this would work on my machine, but since I can only submit 1 file at once to a judge, it wouldn't work there.
  Is there any way I would go about doing this in C++? </p>
  
  <p>Thanks.</p>