Bloomberg Financial Software Developer At Bloomberg interview questions

Hi, I received an email to inform me about an event at bloomberg. I had to pass an online test to be invited, so I did email that I wanted to participated and got a link. I could choose between diferent languages like C, C++ or Java. I took the C test which was difficult (I didn't used C for a while). So I went to the event. Now I have receive a call to an in-house interview.