Bloomberg Software Developer interview questions

A easy piecewise function question with Java

In the phone screen I was asked to add two numbers in linked lists and return the result as a linked list. The second question was about how I would design a system that stored stock prices. In the onsite interview, I was asked a little about my projects. The coding question was quite simple - to sort intervals (messed up the sorting part). They discussed in depth the different sorts that could be used, their time complexities, when a particular type of sort would be more beneficial etc. The 2nd technical round was more related to data structures. I was asked to design a hashmap with a worst case retrieval time of O(n).