What are the outputs of the following code fragments?

$($a$)$

$(8\%)$

int foo $($int &p$,$ int $**q)($

$q[1]+=p$;

$**q**=p$;

$p++$;

int $*$r;

$r=$&$p$;

$r++$;

$***r**=2$;

return $***r**3$;

$\}$

int main$()($

int $x[4]=\{2,4,8\}$;

$x[0]=f$@$o(x[0],$&$x[1])$;

cout $x[0]nx[1]nx[2]n$

$x[0]nx[1]nx[2]nx[3]$ endl;

foo $(x[1],$ &$x[2])$;

cout $x[0]nx[1]nx[2]n$

$x[3]$ endl;