Spent some time going over the resume and my experience, talked about some previous work for about a total of 10 minutes.
Dived into coding:
Q1: Matching brackets problem, used stacks to solve in under 10 minutes. Gave detailed explanation because I was pretty familiar with the solution.
PS: Interviewer asked some data structure problem during this one, forgot the question but it was something about which data structure is best for removing and adding items? (linked list)
Q2: Candy crush 1-D problem, thought it'd be easy but it was actually tricky. Spent 20+ minutes on my naive solution but wasn't able to finish. After the interviewer gave lots of hints etc. was able to finish 99% of it.
Results: got invited to next round, also a tech phone screen.
Weird thing is we did not talk about optimizing the solution or time/space complexity