Hi again

I've got this (edit: thx to hdb):

#!/usr/bin/perl -w
use strict;
use warnings;
use Algorithm::Combinatorics qw(combinations);

my $rep = 10;
my @data = 1..$rep;
my $iter = combinations( \@data, 4 );

while( my $p = $iter->next ) {
  my ( $w, $x, $y, $z ) = @$p;
  next unless $w-2*$x+$y or $x-2*$y+$z;
  print "$w, $x, $y, $z\n";
}

[download]

& I would love to add something that would tell me how many combinations it has gone through before it's done. A percentage would be ideal. I tried my @all_combinations = combinations(\@data, $k); & then something like $#$p/$#all_combinations which got me a number, but it was the same on every line, I suppose because there are always the same number of elements in @$p. I also don't really want to create a new array to put the combinations in because I'm only planning to use it for seeing how close I am to being done.

In reply to how to add a counter by crunch_this!

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