Amazon Software Development Engineer interview questions

On 14th December 2019,I appeared for an interview at B.M.S. College of Engineering for a 6-month Software Development Engineering Role. I had applied through amazon career site and got shortlisted for online assessment in meetl platform in which they've asked 2 coding questions and 28 mcqs of computer science fundamentals like DS,Algo and C++ basics. they usually call for interview if you complete both coding questions. second round was interview round in which recruiter had given the 2 coding question for 40 minutes which are mostly of DS and Algo. in the each coding question first of all you have to discuss your approach then optimize the solution then they'll tell you to implement the solution in language and make sure you write the production ready code and be interactive with recruiter they're very cool and guide you if you stuck somewhere . unfortunately , I've got rejected because i could not optimize the solution.