If you want minimum, just replace the last while loop with this:
for my $key (keys %candidate) {
    print "$key -> ";
    my $cand = $candidate{$key};
    my $ref  = $reference{$key};
    if ($ref and $ref < $cand) {
        print $ref;
    } else {
        print $cand;
    }
    print "\n";
}

[download]
For maximum, invert the < sign.

In reply to Re: hash comparison by choroba
in thread hash comparison by sarvan

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