WAP to understand white space

//program to understand white space
#include <iostream>                 //header file
#include<stdlib.h>                  //header file
using namespace std;
int main()                          //main function
{
    cout << "Hello C++!" << endl;// string print with space called white space. It also can be tab/line feed
                                    //vertical tab or formfeeds etc.
    return 0;                       // returns 0 after execution
}