[LtWorf]

Oh I've had a terrible interview at Google too!

They told me it was all about pseudocode and how I think in advance, then on the actual interview they were being annoying about variable names and spaces after comma, while I was supposed to come up with some clever optimisation that boiled down to: "do you know this obscure theorem already? Cool you pass"

[inerte]

Same for me. I applied for engineering manager. Was told it was going to be a code review. I found a bunch of things that it could be improved, detected a very slow part / quadratic loop, but couldn't come up with the best algo to use. It was just leetcode in disguise.

[LPisGood]

Which theorem?

[LtWorf]

I don't even know the name. I reviewed the question with a friend of mine who has a PhD in mathematics and teaches at university and he figured it out (after a way longer time than the duration of the interview itself) :)