Amazon SDE Intern interview questions

self intro , 2 coding questions. interviewer was very helpful and helped me a lot. 1st question on trees and 2nd question arrays. it is a 1 hour interview . trees question is hard .

I was invited to complete 2 OAs (one for the security version, the other for regular SDE). I passed both but was rejected from the security position due to family US citizenship background. For my interview for the SDE position, the interviewer never showed up. It was then rescheduled to a later week. The interviewer did not ask any behavioral questions and moved straight into the technical after a 5 min discussion about my resume.