I had an on-campus interview and then an interview at Bloomberg's New York office. I didn't have a good on-campus interview, so I was surprised to find out I'd been asked back for a second round. The email didn't specify it was for a second round on-campus interview, so I thought it was sent in error.

I couldn't make the original date, so they brought me down to their offices in NY, where I had an interview. I had a first-round interview there and was then told to wait for my second interview. I waited, but was subsequently informed I was done for the day.

Here's a review of some common interview questions:

• A question on fast exponentiation.
• A question on the median of a stream of numbers.
• A question on finding the longest common subsequence between two strings.