improve starting point of program

[Aliwahid17]

it will help beginner c programmers to know where to start writing code.

[siebenschlaefer]

I'm slightly in favor of that change. armstrong-numbers seems to be the first exercise for many students, let's keep the entry barriers low.
But I don't like this two includes, the exercise can be solved with or without functions from <stdio.h> or <math.h>.
(Disclaimer: I'm a mentor, not a maintainer. I can only voice my opinion.)

[ryanplusplus]

I'm slightly in favor of that change. armstrong-numbers seems to be the first exercise for many students, let's keep the entry barriers low. But I don't like this two includes, the exercise can be solved with or without functions from <stdio.h> or <math.h>. (Disclaimer: I'm a mentor, not a maintainer. I can only voice my opinion.)

I agree. I don't mind the addition of the skeleton function, but the includes aren't necessary and I think they should be removed.

[ryanplusplus]

Suggested change

	#include <stdio.h>
	#include <math.h>

[wolf99]

Is hello-world no longer the first exercise?

If this is not obvious, should there be some update to the docs?

Sorry last time I mentored was pre-v3!

[siebenschlaefer]

Yes, hello-world is still the first one. But since it can be solved by replacing NULL with "Hello, world!", that doesn't force students to understand what functions are, where they are defined/declared, why there's no main(), etc.
I've talked to quite a few students (in mentoring sessions or on gitter) who struggled with the first "real" exercise: armstrong-numbers.
BTW: This is what the C track currently looks like: