Microsoft SDE-intern interview questions

1st was the OA then there was 3 rounds and each round consisted of medium level coding questions with the interview being a friendly one as they were helping me out in brute force approach to the question

First there was an online test in which two coding questions were asked one was from graphs and other dp, after the online round there were two technical rounds where they asked about some cs fundamentals and coding questions. I was asked to reverse a string word by word