Amazon Software Development Engineer interview questions

I was interviewed for an internship. 1st round was online assessment, code was given, and you have to find bugs(speed matters in this round). There were few logical reasoning questions in this round. 2nd round was an online coding assessment—two medium coding questions. I was not able to compile my second question code because I was trying to make some last-minute change, but logic was pretty much correct. The 3rd round was a coding interview. Two medium coding questions were asked-one on the binary tree and other on bit manipulation. Make sure you know the complexity of your code and how to optimize it. ** Read Amazon Leadership Principles before your interview and prepare your behavioral questions accordingly.

3 online technical questions. the first one was two find the error in the code and fix it the second was to solve to coding problems and the third was a situation test