What will be printed out if the following code snippet is executed $($assume all of the includes and function prototypes are in$-$place$)$:

#include

#include

void add$($int num$1,$ int num$2,$ int$*$ result$)$;

int main$()\{$

int number$1=3$;

int number$2=7$;

int sum $=0$;

add$($number$1,$number$2,$ &sum$)$;

printf$("\%$d

$",$ sum$)$;

return$(0)$;

$\}$

void add$($int num$1,$ int num$2,$ int$*$ result$)\{$

$*$result $=$ num$1+$ num$2$;

$\}$

nothing

$10$

$0$

there will be an error