Meet with the technical recruiter in the morning.

He actually went over who I'd be talking to and at approximately what time I would be meeting them.

Lunch was included.

The schedule indicated we'd end about 3-4 PM.

All the interviews were technical.

One of the interview slots was attended by 3 people, so it was like a panel.

All of the interviews involved coding questions.

Lunch was with the potential future team.

I was asked an interesting strstr question: implement strstr using a linked list of linked lists.

This is actually quite difficult. I spent about 70% of the time designing an iterator to walk through the linked list of linked lists. With the iterator in place, strstr became pretty easy.

The interviewer said that I produced the best answer he's ever seen.

This is actually quite a difficult question, and I've begun to use the first part (design an iterator over a linked list of linked lists) as one of my standard questions.