This program can be used to print character without using any output statements. This program only works in 16-bit mode since it directly writes to VDU Memory.
 
 
#include<stdio.h>
#include<conio.h>
void main()
{
char far *p=(char far *)0xb8000000;
*p=’A’;
getch();
}

This program accepts any valid C Program as an input and removes the comments and blanks from it. The output is a program that has no comments and blank lines.

#include<stdio.h>
#include<conio.h>
#include<process.h>
#include<dos.h>
void main()
{
FILE *a,*b;
char fname[20],ch,tch=NULL,tch1=NULL;
int flag1=0,flag=0,count=0,count1=0,count2=0;
clrscr();
printf(“Enter the …

Here is a C program to print it’s own source code. That is the output of this program is exactly same as it’s source code. Here’s the program

#include<stdio.h>
char *program=”#include<stdio.h>%cchar *program=%c%s%c;%cvoid main()%c{%cprintf(program,10,34,program,34,10, 10,10,10);%c}”;
void main()
{
printf(program,10,34,program,34,10,10,10,10);
}