somewhat off-topic: I had an interview for an Engineering Manager position with the Head of Engineering.

They had some leet code problem prepared and I tried solving it and failed.

During the challenge, I used some python string operand (:-1) (and maybe some other stuff) that they didn't knew.

In the end, I failed the challenge as I didn't do it in the O(n) way...

These kind of stupid challenges exemplify what's wrong with hiring these days: one interviewer, usually some "vp"/"head of" decides what is the "correct" way to write some code, when they (sometimes) themselves couldn't write a line of code (since they've been "managers" for a millennia)

ps. they actually did not know what `:-1` means ...I rest my case