Bloomberg Software Developer interview questions

I am Masters student. I got a call from the career fair held at my university. On the spot interview consisted of simple puzzles (e.g the weight distribution) and some OOPS concept. Then they called me for a one to one interview. The interview consisted of question mainly related to the areas of C , database and comp arch. I was not able to answer one of the questions in C and the interviewer spent the whole time dragging me around that questions. It looked as if, he had already rejected me and was simply wasting our time.

There are two rounds of phone interviews, both are technical. They ask questions like bit operation, c++ terminology, memory problem, bug fix. Got a on-site interview in one week. In the on-site, meet with 2 persons each time except the one with the manager. The manager explained projects and teams, but also asked two alogrithm related problem, one is string manipulation and you need to write code on paper.