This looks like a bug. The discuss button is not available anymore when you start a kata, you have to get out of training and then you can click discourse at the top. There's quite a few ui problems.

One problem with that:

There is no such button. I’m guessing those two buttons are unavailable on kata ranked two or more kyu above the user. Don’t think that’s stated anywhere. Is it?

Click the "Discuss" button at the bottom right side of the page (see image below).

Please either tell me what’s wrong with my code, or fix the kata’s evaluation code and/or instructions. Perhaps don’t have the function return an array, but pass it an array to populate.

I mean, how do you get there from the /train page? Is the site just not well laid out that way?

In your browser's developer console enter: document.getElementsByClassName('tabs is-contained mbm')or go to https://www.codewars.com/kata/:kata_id_or_slug/discuss if you still can't find the discourse button.

(Duplicate reply)

I don't see a discourse link while working on a kata.

So why are the random tests crashing on free() when I don't even call that function? How can I avoid it?

*** Error in `/home/codewarrior/solution': free(): invalid pointer: 0x00000000006031e0 ***

1.) Go the Kata
2.) Click the discourse link at the top of the page
3.) Click the "Leave feedback or ask for help..." field. Enter comment. Then click "Post".

In fact you pass 21 fixed tests and One random.
47 guys passed the C kata.
Returns of random tests are freed.

You’re most likely not using a static array for your return value. That’s needed when returning arrays in C.

I tried to edit my spoilery comment but it was just blank, so I posted this reply on that topic, and the comment suddenly re-appeared. With no edit option, though. And I don’t think I can delete this reply.

How do I comment on a kata that I have a problem completing?