here ya go: a recursive routine that returns a hash
ref. where the values associated with each key are
arrays (actually, references to arrays)
use strict;
use Data::Dumper;
sub Recurse
{
my $n = shift || 0;
if ($n <= 0)
{
return {};
}
else
{
my $val = [ map { $n ** $_ } (1 .. 5) ];
return { $n => $val, %{Recurse(--$n)} };
}
}
my $powers = Recurse(5);
print Dumper($powers);
outputs:
$VAR1 = {
'1' => [
'1',
'1',
'1',
'1',
'1'
],
'2' => [
'2',
'4',
'8',
'16',
'32'
],
'3' => [
'3',
'9',
'27',
'81',
'243'
],
'4' => [
'4',
'16',
'64',
'256',
'1024'
],
'5' => [
'5',
'25',
'125',
'625',
'3125'
]
};
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