Amazon Software Development Engineer (SDE) I interview questions

HR interview and Coding challenge: I was given 2 coding problems to solve and asked to write the approach for it. And the HR interview was smooth. The recruiter made me feel comfortable and was very supportive in providing the required resources for me to prepare well for the Onsite interview which is scheduled for a date after 3 weeks from now.

2 Technical rounds (easy to medium) coding questions: 1) copy linked list with random pointers 2)merge intervals 3)petro pump problem all with time complexity and space complexity do all interview bit questions, follow tech dose and love babbars 450 sheet