Hi, the shootout is an unfinished project. I've decided to discontinue updates to it for now while I work on some other things. Thanks for everyone's help.
Which is really a sad thing as their perl code is crippled,
with unnecessary code : (lines number is part of their scoring system)
useless variables initialization (my %hash=())
useless buffering
while (read(STDIN, $_, 4095)) {
$_ .= <STDIN>;
...
}