Standard questions.

First, I was sent a coding challenge via Karat. It was to complete one question related to trees/hashmaps. After passing that, I was asked to schedule a video interview with a Karat interviewer. During this interview, I was asked to code two more questions live on video within an hour and perform a complexity analysis afterward. Following that, I received an email mentioning a next interview.

Two weeks later, I was contacted saying I passed all rounds, but there were no more positions open, so they could not schedule a final interview.

Tree-based questions.