Amazon Software Developer Engineer (Internship) interview questions

Machine round have 3 coding question. one was basic array , second was of tree and the 3rd was from the n-queens problem. and the time was of 1.30hr to solve all the problem

Started with an OA. A week later I received a link to schedule an interview. My interview was rescheduled 2 times before a date was confirmed. The interviewer was nice and the questions were fair. Unfortunately, however, I didn’t get as lucky as my recruiter as he was not helpful at all in the process. I was told I would hear back within 2 days but it took a month for them to let me know that I was waitlisted. In the end, I didn’t get the offer.