[HelloNurse]

It's a test that you are an actual programmer, a way to probe your tastes and maturity, a measure of your skill (if the code sample is bad) and a starting point for an interview.

For example, I wouldn't hire someone who sends me proprietary code from their previous job, and someone who "solves a common CS question" instead of submitting something advanced and/or useful shows that they are very junior (which is not the same as being careless and incompetent).

[max_effort]

Fair point. I have quite a few code samples from libraries I've developed which I can provide. I just wanted to get some insight into the ambiguous criteria for "best".