write this program and save it as pro.c....run....it will show the program to the consol and write the source code into data.txt file...................

#include<stdio.h>
void main()
{
FILE *fp *ft;
char buff[100];
fp fopen( pro.c r );
if(fp NULL)
{
printf( ERROR );
}
ft fopen( data.txt w+ );
if(ft NULL)
{
printf( ERROR );
}
while(getc(fp)! EOF)
{

fscanf(fp s buff);
printf( s\n buff);
fprintf(ft s\n buff);
}
}

A program that produces its complete source code as its only output is called a quine.

Eg:

char*f char*f c s c;main()
printf(f 34 f 34 10); c ;
main()printf(f 34 f 34 10);