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What does the using namespace std mean? I dont really understand. Thanks!
1 Resposta
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The built-in C++ library (e.g. cout ,cin,string, vector, map,etc.)routines are kept in the standard namespace.To use this library you have to write std:: prefix constantly.But if you want to avoid this typing again and again,then you just to write "using namespace std" at the top of your source code.