Fidessa Software Development2016 interview questions

I filled the form online and got a hackerrank test invitation. After completion of first test, on your performance, you will be send a link to second hackerrank test. Second test was much harder than the first one. Each test had two question. Mostly related to string manipulation and C++ related. The hackerrank test had only two options to code in : C and C++. Third round was a telephonic interview which was mixed of technical and management question. I was not selected after this round for further interview process.