Learn basics of python and cpp

at the top of desktop you will see the text (written in red and white color) like
iostream
using namespace std;

this simple header of your program, this are build in function

what is c plus plus(++)
"C++ is a statically-typed, free-form, (usually) compiled, multi-paradigm, intermediate-level general-purpose middle-level programming language It was developed by Bjarne Stroustrup in 1979"

what is programming lanuguages?
"A programming language is a formal language, which comprises a set of instructions that produce various kinds of output. Programming languages are used in computer programming to implement algorithms" Like C plus plus, python, c #(sharp),java etc