FIS Software Developer interview questions

Applied online. HR contacted me saying they were interested in my profile, and was asked to do a task in Linux upon which I would be scheduled an interview. The interview was pretty decent. Questions were on Trees. The interviewer was rushing into things and wasn't really helpful. I had to code on a piece of paper and had to read out the code which was very unprofessional like.

call from company HR, first round is tech round full on core java then 2nd round they will give some programs and ask what is the out put , ask work flow of your current project more about your resume screening , 3rd round is manager round in manager round also they will ask some tech questions most of the manager in FIS are technically very much strong .