It's an ok test, probably some of those are more "googlable" than just having it in memory.

(I find funny the "love for metaclasses" that people consider as "advanced Python" - it has its use cases, but it is a bit restricted. Also DO NOT USE ABC - it's one of those "let's take this Java thing and try to fit it" but it manages to be an even weirder transplant than logging)

> Q: Place the following functions below in order of their efficiency.

This is the test where a good amount of candidates will do well on the coding part but will completely miss the math considerations. Performance will vary a lot depending on the size and distribution of numbers (and none of them consider a trivial optimization that's possible)