C Program for Use of strcmp() function

/* Use of strcmp() function */
main( )
{
char  string1[ ] = "Jerry" ;
char  string2[ ] = "Ferry" ;
int  i, j, k ;
i = strcmp ( string1, "Jerry" ) ;
j = strcmp ( string1, string2 ) ;
k = strcmp ( string1, "Jerry boy" ) ;
printf ( "\n%d %d %d", i, j, k ) ;
}