Here is one solution:
use strict;
use warnings;
use Algorithm::Permute;
my $p = new Algorithm::Permute([qw(c i o l n a o t)]);
my %seen_permutation;
my $length = 5;
while ( my @res = $p->next) {
my @tmp = @res[0..$length - 1]; #get first n letters of
+ @res;
my $key = join('',sort {$a cmp $b} @tmp); #return asciibetical li
+st as key;
unless ( $seen_permutation{$key} ) #skip if this pattern has b
+een seen before
{
$seen_permutation{$key} = 1;
my $r = new Algorithm::Permute([@tmp]);
while ( my @sml = $r->next ) {
print join ('',@sml), $/;
}
}
}
Since you are looking for words you might want also skip anything that doesn't contain vowels (though there are words without vowels, such as cwm). -enlil
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