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Re: Re: Re: Re: Re: Fastest way to compare multiple variables?

by mikfire (Deacon)
on May 15, 2001 at 23:10 UTC ( #80677=note: print w/ replies, xml ) Need Help??

in reply to Re: Re: Re: Re: Fastest way to compare multiple variables?
in thread Fastest way to compare multiple variables?

Okay, I cannot resist. This is the product of not enough sleep and I warn all who continue. Given we have used merlyn's suggestion for a hash of arrays ( I was actually thinking of an array of ararys, but why not a hash? ), what if we did something like this
sub compare { my %data = @_; my @lengths = sort { $a <=> $b } map { scalar@{$data{$_}} } keys %da +ta; return $lengths[0] == $lengths[-1]; }
Basically, if we sort the lengths and the last element is equal to the first element, then everything else inbetween must be equal.

This has likely no value - it really isn't clearer nor does it likely save any cycles. I just thought it was fun and have not had enough sleep.

UPDATE: did I mention not enough sleep? Fixed a typo

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