Tell me the function of # include<iostream> and int main ( ).

Answer 1

# tells the pre processor to include include the contents of iostream library..
int main is the main function in which operations are done

Answer 2

int main(). is the only fiction which is recognised and run by the compiler without int main () basic program won't run.

Answer 3

int main() is a function while #include<iostream.h> is a header file which is used for the execution of certain statements such as cin , cout , etc.