"People who interviewed me were so arrogant and clueless. They had no clue how to calculate time complexity. No clue why provided unit tests were not enough and

"People who interviewed me were so arrogant and clueless. They had no clue how to calculate time complexity. No clue why provided unit tests were not enough and etc. They were just looking at the solution and thinking they know everything." They were probably running through a standardized interview with you, with the goal of making it a more objective process and to allow comparing results. Such interviews can appear to be about technical tasks, while actually some other things are evaluated, e.g. how you approach solving issues, how you interact with others, how opinionated you are, etc. If they had "no clue how to calculate time complexity", I'd guess the interviewer played this role and expected you to explain how to do it, patiently and without any judgement. How did you respond?