Amazon Software Development Engineer I (SDE I) interview questions

Just gave OAs (online assessments). Part 1 was debugging, second was coding and third was more like behavioral/ work environment simulation. The second round also included a behavioral section along with two coding rounds. The debugging round had 7 questions to solve in 20 mins.

The coding question asked was not really difficult to solve but the fact that the solution had to be optimal made it harder to complete the problem. Prepare for the time and space complexity as well