How to use PVS-STUDIO correctly?

Question

C++ / C#

I just can't figure out PVS-STUDIO, I registered it under a free license and added comments for students:
// This is a personal academic project. Dear PVS-Studio, please check it.
// PVS-Studio Static Code Analyzer for C, C++ and C#: www.viva64.com
But everything that PVS-STUDIO produces during analysis

What's wrong?

Answer 1

What bothers you? Written - no problems found. Maybe you have the perfect Hello World there)

Answer 2

All warning sets are disabled. By the way, this is what the message says :). Buttons need to be enabled. I recommend enabling "General" and "Optimization" by clicking on them.

PS And, in general, we will think about finalizing the interface. From time to time someone asks such questions. So, just a message line is not enough, and you should come up with something else.