Leetcode can work well for junior / new grad candidates if you help & hint them a bit. For example they probably forgot breadth-first search, but if you give a

Leetcode can work well for junior / new grad candidates if you help & hint them a bit. For example they probably forgot breadth-first search, but if you give a couple hints about queues and they show tremendous swiftness, then that can be a good sign they’ll learn very quickly on the job. Does not prevent false negatives but reduces the FN rate and gives them what they really want (learning experience).