Amazon Senior Software Engineer interview questions

I applied using the Linked In jobs. After a few days, I received a message from the Amazon recruiter, asking me to have a phone interview. We had this phone interview, and he asked me to do an online test on Hacker Rank platform. I did this test and I did well solving the problem, but I did not so well answering two theoretical questions about time and space complexity of my solution. I guess it was decisive to my disqualification on this recruitment process. The Amazon recruiter sent me a feedback informing that I am out. It was a very good experience to participate on this process. I will study this topic to have better experiences in the next opportunities.

Got a call from HR, scheduled for telephonic interview, a lady called me, introduced herself and asked me to tell about myself on which she was not interested. Then asked the below question.