Google Software Engineer(Internship) interview questions

I received a coding challenge and after completing it and waiting for a response, I got scheduled for the technical phone interview. For my phone interview I had two of them back to back. They were both with Google Software Engineers and they both asked me one technical question with a couple of follow-up questions and edits I had to make to my answer.

I applied through referral and got reached out 1-2 weeks later to setup a first interview. First interview was technical phone interview with 2 questions interviewer tried to help me a lot. It was good experience since it was my first algorithmic tech interview ever.