Apple Software Engineer interview questions

I had two phone interviews, both focused on solving programming problems

I did an initial phone interview where we discussed general technology, I presume this was to make certain they weren't wasting their time. They then followed up with on-site interviews for which I was flown out and put up in a very nice hotel. The interviews lasted from 9am-3pm in 45 minute increments, each with a different person. Each person was different, some wanted me to do specific programming problems others just wanted to talk about my experience. Overall the stress level wasn't too high, and I wasn't asked to do anything overly complex.