Amazon Software Development Engineer interview questions

I was asked 2 questions on heap.I wasable to solve one and optimize it and the next one I solved the brute force but could not do the optimization. 1st question was arrange a string in such a way that no 2 consecutive characters are together. 2nd was add ropes such that the time taken to add is minimum

Coding assessment wasn't too hard. Recruiter helped me along the way. Skipped straight to final interview. Intense 4 hour interview. Interviewers were compassionate but it was challenging. They deeply look to see if you have the leadership principles so it can be a bit intimidating but it helps to be confident and be yourself.