Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

It appears that I have confused a few people here. What I need "minimized" is the aggregate height per column as summed from @height data.

Given the heights of qw/ 10 10 15 20 10 10 /, I could conceivably construct a table with no column having greater than 20 items in it:

10 15 20 10 10 10

The following solution, would fail because one of the columns has 25 items:

10 10 20 10 15 10

Part of the problem, I suspect, is that I had a bug in my original code because I accidentally posted the wrong version. The @distribution array needs to be reset every iteration. The following is correct:

#!/usr/bin/perl -w use strict; use Data::Dumper; my @height = qw/ 10 15 25 30 10 13 /; my @columns = ($height[0],0,0,$height[-1]); my $curr_height = 0; # set this unreasonably high to ensure that subsequent # heights will be lower $curr_height += $_ foreach @height; my @distribution; for my $a (0..1) { $columns[$a] += $height[1]; for my $b (0..2) { $columns[$b] += $height[2]; for my $c (1..3) { $columns[$c] += $height[3]; for my $d (2..3) { $columns[$d] += $height[4]; my $this_height = ( sort @columns )[-1]; my $valid_dist; foreach ( @columns ) { $valid_dist = $_; last if ! $valid_dist; } if ( $valid_dist and $this_height < $curr_height ) { $curr_height = $this_height; @distribution = ([1],[],[],[6]); push @{$distribution[$a]}, 2; push @{$distribution[$b]}, 3; push @{$distribution[$c]}, 4; push @{$distribution[$d]}, 5; } $columns[$d] -= $height[4]; } $columns[$c] -= $height[3]; } $columns[$b] -= $height[2]; } $columns[$a] -= $height[1]; } print Dumper \@distribution;

I hope that's clear, now :)

I also have to add that there's a heck of a lot more discussion on this than I thought there would be.

Cheers,
Ovid

Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.


In reply to Re: Re: Puzzle: need a more general algorithm by Ovid
in thread Puzzle: need a more general algorithm by Ovid

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others avoiding work at the Monastery: (11)
    As of 2014-08-20 12:15 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The best computer themed movie is:











      Results (113 votes), past polls