> contrived problems in stressful situations are going to result in a lot of false negatives I don't understand the concern with a "contrived" problem. You thi

> contrived problems in stressful situations are going to result in a lot of false negatives I don't understand the concern with a "contrived" problem. You think it is better with a random spontaneous problem the interviewer thinks up on the spot? Interviews are stressful for most people; good interviewers will take that into consideration.