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Re: Any improvement over the code possible??

by Kenosis (Priest)
on Sep 21, 2012 at 18:00 UTC ( #994961=note: print w/ replies, xml ) Need Help??

in reply to Any improvement over the code possible??

Consider the following:

sub find_above_average { my $mean = &calculate_average(@_); return grep $_ > $mean, @_; }

Remove the say line and print the average outside of the subroutine, and use grep to return only those values greater than the value of $mean.

sub calculate_average { @_ > 0 or die 'No numbers sent for averaging.'; my $sum = 0; foreach (@_) { $sum += $_; } return $sum / @_; }

Check for an empty list at the top to avoid a division by zero error.

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