This kata completely lacks in novelty: The problem source is intentionally left vague but google image search links to this blogpost which links to the source reddit post, and the solution is revealed to be, well, a simple one line solution that takes zero effort to be golfed down to the required limit.

In other words, the code length restriction is zero-effort, and this is a pinnacle of not code but math problems. Definitely low-effort kata, very unsatisfied.

(This post shall be left intentionally unspoilered because it's literally a homework problem. Why are we doing homework problems again?)

Don't Cheat as assertion fail message is meaningless. A descriptive one should be used.

Also, user code length is not displayed, which should be done by default in code golf katas.

python: I don't know what happened, but despite all solutions being still valid in the solutions page, none of them can still pass the tests: every single one I tried is currently timing out.

Maybe seek in the last updates to python if something went wrong?

cheers