[christiansakai]

I'm not assuming. I'm just describing my experiences and what I've seen with my own eyes, a few times. Take it as what it is. Btw I don't assume that women are strictly diversity hires. Nowhere I said that in my statement. There are many many amazing smart women everywhere, even CS professors that I respected during my education are women. I'm just saying that diversity hire exists, that's all.

That is definitely one possibility. If you have studied a lot to get into an X companies and now you also need a lot of luck to get in, then it will deter you from quitting.

So basically, for example, two questions, Leetcode Medium difficulty, there are a few solutions. One can be done in O(n^2) the other one can be done in O(n) (non trivial algorithm). You need to code the O(n) algorithm to pass. You also need to be able to do it in under 20 mins each (total 40 mins, 5 mins for questions to the interviewer and introduction).

Sometimes the non trivial algorithm is an algorithm that you don't know, which in fact, was founded by some famous CS scientist. So in order to do that, you need to have studied that algorithm yourself and apply it during the interview. For example, Robin Karp algorithm, Knuth Morris Pratt algorithm, Djikstra algorithm.