In every c++ program

Answer 1

I suppose you are referring to one of the questions in the quiz from module one of the tutorial, since it reads the same.
If those questions give you trouble, that is a good hint for you to review the lessons from that module again, as it means you didn't understand or missed some crucial information, which can be found there. Also, you can always use some of your XP to unlock the solution to a question.
I would just advise you to not simply ask others for the solution the way you did, as it will only hurt your own process of learning the language.