Amazon Software Development Engineer SDE I interview questions

3 rounds of virtual onsite interviews in one day. Each round start with BQ and then a coding question. One interviewer came late about 10 minutes and dig deep with the resume without BQ, then he said he doesnot know what my solution means(a simply topological sorting)

3 back-to-back interviews w/ 15 minute breaks in between. Same format each; behavioral then technical questions (leetcode medium level questions). Interviewer kept changing technical question and gave conflicting information. Also asked to describe some projects I did.