Microsoft Software Development Engineer (SDE) Intern interview questions

I sat for on-campus internship for SDE role at Microsoft. The Preliminary Round consisted of a online coding test which had 3 questions to be solved in 90 minutes. They were pretty easy (kadane's algorithm, easy-medium leetcode.). I was selected for 1:1 interviews. Round 1 was just to check whether the candidate can code and explain the time complexity and be able optimize the code. I was given a easy problem on string manipulation. Round 2 was when things got serious. I was questioned on my resume, previous internships, projects for about 20-25 minutes. After that I was given a grid path finding algorithm(application of BFS, DFS). There were a few extra conditions and also required to print the path etc. I wrote a BFS approach, the interviewer asked for some runs on hypothetical data. I was also asked time complexities of BFS and DFS approaches and if one of them was better than the other. The Interviewer seemed satisfied. I was offered the SDE Intern role some hours later (yeah, just 2 rounds).