Here's the algorithm:
use constant COL => 4;
my @data = qw( 10 15 25 30 10 13 );
my @cols = map [$_], @data;
while (@data > COL) {
my $i = 0;
my $s = $data[$i] + $data[$i+1];
for my $j (1 .. @data-2) {
($i, $s) = ($j, $data[$j] + $data[$j+1])
if $data[$j] + $data[$j+1] < $s;
}
splice @data, $i, 2, $s;
splice @cols, $i, 2, [@{ $cols[$i] }, @{ $cols[$i+1] }];
}
_____________________________________________________
Jeff[japhy]Pinyan:
Perl,
regex,
and perl
hacker, who'd like a job (NYC-area)
s++=END;++y(;-P)}y js++=;shajsj<++y(p-q)}?print:??;