I had two back-to-back "hangout" interviews, followed by a third "hangout" interview a week later. They all had the same format:

• The first 5 minutes were for the interviewers to introduce themselves and explain how the interview would proceed.
• Then, they asked me to solve a problem.
• Finally, they asked that I code my solution.

The remaining 3 to 5 minutes were for me to ask questions.

The questions were problems that required typical algorithms and data structures, such as queues, stacks, graphs, and hash tables, as well as Breadth-First Search (BFS).

I was also asked to analyze time and space complexities.