I applied through a referral from a campus recruiter. Directly got a mail to schedule my interview. The round 1 interviewer was a person from the Pune office. Both the rounds were online.

Round 1:

• Asked about my introduction ( They want to check the graduation year and if applying for correct role ), why I wanted to join Bloomberg
• Brief discussion over array and implementation of linked list. Was asked about to implement my own linked list class.
  • Conditions
    1. Must have 0(1) access
    2. Should be able to allocate new memory and change the size dynamically.
• She asked my how much extra memory I would allocate and why. I gave a interesting answer, stating to use a simple learning algorithm which would eventually learn and allocate the memory as per users requirements in the past.
• Coding question: Maximum Nesting Depth of the Parentheses - LeetCode . Only change was I had to return all pairs of indices ( starting and ending ) of all the maximum depth pairs.
• The question takes place on hackerearth/hackerrank platform, but they do not compile the code and only dry run.
• Discussion over which data-structure to use for a telephone lookup, should be efficient both ways. Lookup by Name and Phone Number too.

Round 2:

• After a month, I again was asked to book an interview slot.
• This time there were 2 people, both from the London office. ( Had some issue understanding what they were exactly saying due to the accent )
• Was asked about my previous internship experience in detail, about my role what I liked, what I exactly did, what was my role. Same about my one of the project I had mentioned in my resume.
• Jumped to the coding question:
  • There are trades coming in the market like
    • AAPL 500
    • MSFT 200
    • AMZ 100
    • MSFT 400
  • Efficiently search the total quantity of trades for a particular stock, and also find out the k most frequently traded stocks. Top K stocks at any particular moment. ( Like after a request for top k stocks, new stocks can be added )
• Then asked me about what unit testing is and there implementation.

Was sent a rejection mail a day latter.