I added "Hello World" programs to the repository. Both C and C++ versions. The
C++ version is a true C++ edition of the "Hello World".

I'd like to give credits for the C++ version but I don't know who the original
author of that funny piece of code is. I've heard it originated from the Usenet
where it was sent to comp.lang.c++ as a troll post but it's impossible for me
to verify that information.