I'm new to C++ and I have 2 questions. I'm using Microsoft Visual C++ and I want to know why do I have to write "using namespace std;" everytime. In BC++ that's not necessary. After I build any program in MVC++ the results dissapears very quick. I have to write system("pause"); at the end of the code everytime just to get to see the result. Is there any other way I can stop it from exiting before I get to see the result?