Here is a simple brute force enumeration for splitting 100 into 5 parts, each a multiple of 2: 
my $step = 2;

for (my $a1 = 0; $a1 <= 100; $a1 += $step) {
   for (my $a2 = 0; $a2 <= 100-$a1; $a2 += $step) {
      for (my $a3 = 0; $a3 <= 100-$a1-$a2; $a3 += $step) {
         for (my $a4 = 0; $a4 <= 100-$a1-$a2-$a3; $a4 += $step) {
            my $a5 = 100-$a1-$a2-$a3-$a4;
            last if $a5 < 0;
            print "$a1 $a2 $a3 $a4 $a5\n";
         }
      }
   }
}

[download]
If you want to get fancier, such as varying the number of parts, you may want to check out Algorithm::Loops

-Mark

In reply to Re: How to determine & record all possible variations for 5 items? by kvale
in thread How to determine & record all possible variations for 5 items? by Stenyj

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