Hey Guys..i am studying class 11 and my teacher had not used usingnamespace std anywhere??

Question

in this application everywhere there is the use of using namespace std so...!!???

Answer 1

You don't have to use namespace std. You can use any namespace. The advantage of namespace std is that std::cout can be shortened to cout, etc. For this reason it's considered​ easier for beginners to use namespace std, hense it's used on this app.