Salesforce Intern interview questions

A recruiter reached out to me after seeing my resume and set up a first round interview for Software Engineer Intern with one of their engineers. He asked me to talk him through my thought process for some algorithmic questions involving trees, sorting, string manipulation. He was really nice and didn't necessarily want to see perfect code. He said I didn't have to write anything out and that it was okay if I ended up with an incorrect solution. He just wanted to see my thought process and how I approached the problem. My second round interview with hiring manager was different since he asked me a lot about operating systems and asked me about data structures and how I would create/write one up. Both interviews were pleasant overall!