This is kinda bugging me "using namespace std;"

Question

what exactly does "using namespace std;" mean and why do we use it in our code ?

I have read it something to do with libraries

what is a library?

" the line using namespace std; tells the compiler to use the std (standard) namespace:"

what is standard namespace?

Answer 1

Have you put namespace in the search bar or a search query?

Answer 2

https://en.cppreference.com/w/cpp/language/namespace

https://www.w3schools.in/cplusplus-tutorial/namespace/

Answer 3

They are confusing the hack out of me.