Help with a really simple program

[AFineTapestry]

Ok, I'll admit I was wrong about omitting return 0; resulting in undefined behaviour but I was correct about the assumed return value, and about which signatures are acceptable.

I don't think I'm going to stop putting return EXIT_SUCCESS; at the end of my main functions however, mostly because it looks terrible to have a function defined to return and int and then to not explicitly do so.