"looked for general knowledge over specific knowledge" - incidentally, I was rejected because I could not answer (to the interviewer's satisfaction) how to implement an in-memory LRU cache. I made some good recommendations but the interviewers were expecting a very specific answer which exactly matched http://www.programcreek.com/2013/03/leetcode-lru-cache-java/
> looked for general knowledge over specific knowledge
This is one commonly thrown BS regarding interviews. At the end of the day it is all about one-dimensional usual algorithmic questions.
Regarding LRU cache, I think this is one of less crazy interview questions. In one phone interview, I had to solve a DP problem, code it perfectly and pass all the test-cases on HackerRank in less than twenty minutes. I am not certain how many developers out there can pass such interviews without months of preparation in such situations. Tech interviews are basically programming contests. I am not against programming contests or algorithmic questions. But it seems the interview questions are getting crazier day by day.
