This is just a variation on partitions where the size of the parts is restricted to a finite set of values. I've adapted some partition code that I had lying around:
#! /usr/bin/perl -w
use strict;
my @parts = (100, 50, 20, 10, 5, 1);
sub partitions { my $n = shift; return partmax($n, $n) };
sub partmax {
my ($n, $maxpart) = @_;
return [] if $n < 0;
return [[]] if $n == 0;
my $partitions = [];
foreach my $part (grep {$_<=$maxpart} @parts) {
my $subpartitions = partmax($n - $part, $part);
foreach (@$subpartitions) {
unshift @$_, $part;
}
push @$partitions, @$subpartitions;
}
return $partitions;
}
my $example = partitions shift;
print "count: ", scalar @$example, "\n";
foreach my $partition (@$example) {
print join(" ", @$partition), "\n";
}
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|