Microsoft Software Engineer internship interview questions

An online round followed by 2-3 technical rounds and a hr round. The online round fairly easy with 3 questions which were pretty basic and the technical rounds were overall of medium difficulty. This was an oncampus interview.

Description of my resumé, slowly analyzing and describing my solution to the problem as I went, and some ways to optimize my original solution. At the end you get an opportunity to ask a question or two about the company or the work that the interviewer does.