I dont understand about output in c++ program😢.can anyone teach me

Question

help me pleasee😇

Answer 1

Describe exactly what you don't understand, please

Answer 2

There are 4 streams:
cout: output stream
cin: input stream
cerr: error stream
clog: log stream

Last two write to the stderr.

All of these are global objects (instances) of basic_istream and basic_ostream classes which are used for input and output the data using << and >> non-member functions.

Answer 3

i cant understand about the cout and cin in at the basic