func$2($A$,$n$)$

$/*$ A $=$ array of n integers $*/$

$1$ if $($n $<=20)$ then return A$[$n$]$;

$2$ x $0$;

$3$ for i $1$ to $5$ do

$4$ for j $1$ to n $3$ do

$5$ A$[$j$]$ A$[$j$]$ A$[$j $+1]$;

$6$ end

$/*$ Note: This recursive call in inside the for loop that starts in step $3.*/$

$7$ x $$ x$+$ func$2($A$,$n$/5)$;

$8$ end

$9$ return $($x$)$;