my ($max) =
    map $_->[0],
    reduce { $a->[1] > $b->[1] ? $a : $b }
    map [ $_, complex_calculation($_) ],
    LIST;

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Update: Added missing parens around LHS of assignment

In reply to Re: List::Util max with block by ikegami
in thread List::Util max with block by dlarochelle

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