Standard library in c++?

Answer 1

What do you meen? Stl for example.

Answer 2

you can See
http://www.cplusplus.com/reference/

Answer 3

there are so many Standard Template Library in C++.

more infor on
https://www.tutorialspoint.com/cplusplus/cpp_standard_library.htm
https://www.tutorialspoint.com/cplusplus/cpp_stl_tutorial.htm