What is common in all cpp programs?

Answer 1

The first lines: include <iostream> and using namespaces std;
Also ,the main() { }function

Answer 2

yeah I agree with this.;)

#include<iostream.h>
using namespace std;

int main()
{
return 0;
}

This all is common in all CPP programs.yeah that's it.

Answer 3

I have a bug with s password program im creating and trying to run correctly. Can anyone help?

Answer 4

opp concept is common in all programing

Answer 5

The main function is the minimum you have to define. That's why it's common to all C++ programs. Sometimes it might be hidden in a library but nevertheless it's there.