> Demonstrate this particular method (which happened to be taught at our rich-kids alma mater, but no one else had heard of). This is one of those things that

> Demonstrate this particular method (which happened to be taught at our rich-kids alma mater, but no one else had heard of). This is one of those things that often gets repeated online, but I've never seen in practice. I've never seen a Leetcode interview question that can't be solved with knowledge outside of what you'd learn after the first semester of sophomore year. Helping my wife with Leetcode, I can see why some people would think this way though. Some people simply have better algorithmic intuition than others, so that may come off as memorization. The only somewhat esoteric questions I've been asked is Indian immigrants asking about the minutiae about the JVM. Even then, I don't think these would be unreasonable if you were explicitly screening for Java developers.