Quine

Quine

Computing

A quine is a computer program which takes no input and produces a copy of its own source code as its only output.

There are two method doing this

1.Using File Handling

2.Using String

Method 1

#include <stdio.h>

#include <string.h>

main()

{

   FILE *fp;

   char buff[255];

   fp = fopen("input.txt", "r");

   if( fp != NULL ){

      while ( !feof(fp ) ){

         memset(buff, '\0', sizeof( buff) );

         fgets(buff, 255, (FILE*)fp);

         printf("%s", buff );

      }

      fclose(fp);

   }

}

Method 2

#include <iostream>

#include<string>

using namespace std;

int main()

{  string s="#include <iostream>@"

"#include<string>@"

"using namespace std;@"

"int main()@"

"{  string s=;@"

 "for(int i=0;i<s.length();i++)@"

   "if(s[i]=='@')@"

   "cout<<endl;@"

   "else@"

  " cout<<s[i];@"

  " return 0;@"

"}@";

   for(int i=0;i<s.length();i++)

   if(s[i]=='@')

   cout<<endl;

   else

   cout<<s[i];

   return 0;

}