Bloomberg Financial Software Developer interview questions

After applying I got an email from the recruiter to select a programming language of my choice for an online assessment test. I chose C. The questions were multiple choice and primarily on what would be the output and memory allocation types. Then after a week I got a mail for a phone screen. The phone screen question were technical :- Write a code to add commas to integer, e.g., 12345 will become 12,345 and 1123 would become 1,123. Design a vending machine, which data structure would you use if you want to count the occurrence of each word in a dictionary and some basic resume based questions. After 1 week I was invited for an in-person interview. They took care of me real well,including the flight booking, hotel reservation, pick up from airport etc I had 1 technical round with 2 developers. I was asked to revverse a string in place and also remove spaces, so for example "Software Eng " would become "tfoSgnE" Also to create a data structure to for the appendix of a book and some questions about what I am doing currently. Now I am waiting for an answer form them :)

Why FSD? What is your experience, what is related to programming? Technical questions What do you want to ask?