Hello!!

In this program, # is a preprocessor directive ,  whereas #include is used to extract the 
functions already created in files (eg:- conio.h contains getch() function). clrscr() clears the whole screen.
Line printf prints the whole statement written inside it.
getch() is used for input of any character .
For more information & explanation of this program click here..

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Program to print Hello!!.

#include<stdio.h>
#include<conio.h>
void main()
{       clrscr();
printf("\n\n\t\t HELLO!!");
getch();
}