Illustration $2$: The minimal operation which must be defined for any iterator is that two of them can be compared as:

Group of answer choices

greater than and less than

greater than only

equal only

equal and not equal

Illustration $2$

$//$ class templates

$1.$ #include

$2.$ using namespace std;

$3.$ template

$4.$ class mypair $\{$

$5.$ T a$,$ b;

$6.$ public:

$7.$ mypair $($T first, T second$)$

$8.\{$a$=$first; b$=$second; $\}$

$9.$ T getmax $()$;

$10.\}$;

$11.$ template

$12.$ T mypair :: getmax $()$

$13.\{$

$14.$ T retval; $|$

$15.$ retval $=$ a$>$b$?$ a : b;

$16.$ return retval;

$17.\}$

$18.$ int main $()\{$

$19.$ mypair myobject $(100,75)$ ;

$20.$ cout $<<$ myobject.getmax$()$ ;

$21.$ return $0$;

$22.\}//$page $25$