Google Engineer interview questions

Good, fair questions, pretty unique interview done over video, and I thought it went well we will see how it goes once I get updated on the status of it.

4 rounds, each 45 min. they went well except for one, where the interviewer was a bit stern and I didn't understand the question for a while. After coding up a basic run of the solution, he asked me about edge cases even though I explained that I was going to tackle that afterwards.