First was an HR interview where they did ask about my salary requirements (which I naively answered). Then a technical phone interview with coding on a web whiteboard. After a little bit of conversation, he asked the coding question, below. I passed this interview and was scheduled for the onsite in San Bruno which involved 5 hour-long interviews with a lunch break. I thought the first one went well, but the second one I forgot to check all the test cases. I was sent home after 2 interviews. I had to sign an NDA so I can't give the questions that I was asked onsite. Since I was done early, I had to hang out at the airport for 8 hours, in the terminal that had the worst food. They book the flight and hotel, but I still haven't gotten reimbursed for my travel expenses.