Make memory diagrams for point $1($I included the one that I did, although i$\text{'}$M not sure that's correct$)$:

#include

void reverse$($const int $*$source$,$ int n$,$ int$*$ reversed, int$*$ m$)$;

int main$($void$)$

$\{$

int a$[]=\{100,9,17,0,15\}$;

int size$\_$a;

int i;

int reversed$[5]$;

int n;

size$\_$a $=$ sizeof$($a$)/$ sizeof$($a$[0])$;

printf$("$a has $\%$d elements:", size$\_$a$)$;

for $($i $=0$; i $$ size$\_$a; i$++)$

printf$("\%$d$",$ a$[$i$])$;

printf$("$

$")$;

reverse$($a$,$ size$\_$a$,$ reversed, &n$)$;

printf$("$reversed values from a:$")$;

for $($i $=0$; i $$ n; i$++)$

printf$("\%$d$",$ reversed$[$i$])$;

printf$("$

$")$;

return $0$;

$\}$

void reverse$($const int $*$source$,$ int n$\_$source,

int$*$ reversed, int$*$ m$)$

$\{$

int i;

$*$m $=0$;

for $($i $=$ n$\_$source $-1$; i $>=0$; i$--)\{$

reversed$[*$m$]=$ source$[$i$]$;

$(*$m$)++$;

$\}$

printf$("\%$d$",*$m$)$;

$/*$ point one $($NOTE: This is $*$outside$*$ of the for loop.$)*/$

$\}$