Just curious: Are the
    $containers{$con} = [ ] if !exists $containers{$con};
or
    $containers{$con} = 0 if !exists $containers{$con};
statements strictly (or warnings-ly) necessary with your Perl version? They aren't with 5.8.9 and 5.14.4 — but they certainly do no harm in any case.

Give a man a fish:  <%-(-(-(-<

In reply to Re^2: Count array element in HASH of ARRAYS by AnomalousMonk
in thread Count array element in HASH of ARRAYS by stm

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