Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

Characters Combinations of All Sizes

by monkfan (Curate)
on May 01, 2005 at 08:01 UTC ( #452988=snippet: print w/ replies, xml ) Need Help??

Description: The snippet uses Math::Combinatorics module. Given a set of characters as an array. It returns all the possible combinations of the characters ranging from 1 character to total size of the array.

Update: Data::Dumper included. Thanks to zentara.
#!/usr/bin/perl -w
use strict;
use Data::Dumper;

my @n = ('A' .. 'C');
my @all_string = get_char_comb(@n);

print "There are: ",scalar(@all_string)," strings\n";
print Dumper \@all_string;

sub get_char_comb
{
    use Math::Combinatorics;

    my @alph = @_;
    my @all;

    foreach ( 0 .. $#alph+1  )
    {
        my $combinat = Math::Combinatorics->new( count => $_,
                                                 data => [@alph],
                                                );

        while(my @permu = $combinat->next_combination)
        {
            push @all, join("",@permu);
        }

    }
        return @all;
}
Output:
$VAR1 = [
          'A',
          'B',
          'C',
          'AB',
          'AC',
          'BC',
          'ABC'
        ];

Comment on Characters Combinations of All Sizes
Select or Download Code
Re: Characters Combinations of All Size
by zentara (Archbishop) on May 01, 2005 at 12:23 UTC
    You forgot a "use Data::Dumper;".

    I'm not really a human, but I play one on earth. flash japh

Back to Snippets Section

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: snippet [id://452988]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (3)
As of 2014-08-21 04:20 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (127 votes), past polls