given the following main function:

int main$()\{$

int num$1=21,$ num$2=6$; $//$ test the code using num$2=6$ & num$2=0$

int sum$=0,$ mult$=0,$ sub$=0$;

double div$=0$;

if$($calculation$($num$1,$num$2,$sum,mult,sub,div$))\{$

cout$<$