I was contacted by a Facebook recruiter and offered an interview for a Software Engineer Internship.

I had two interviews, both a combination of talking on the phone and coding on collabedit.com.

The first interview took place about five days after I was first contacted about the position. The interviewer asked a few questions about projects I'd done and then started with programming questions.

The second interview happened a week later, and the interviewer dove straight into coding problems. I was asked general algorithm questions, such as:

• Get the n-th Fibonacci number
• Find the square root of a number
• Find the depth of a binary tree
• Merge two arrays

Both interviewers saved time at the end for any questions I wanted to ask them.

Display the sorted output of a merge of any number of sorted arrays. Then, do it again, more efficiently.