why do you give me a bad reputation?
I don't know (I haven't downvoted the post). Nevertheless, I see some issues:
  1. /Cat|Turtle/ would match Catalogue as well.
  2. grep examines all the elements of the array, even if it finds a match at the very beginning. That's probably not "the most efficient way". 
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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In reply to Re^2: The most efficient way for searching for an element in an array? by choroba
in thread The most efficient way for searching for an element in an array? by Ppeoc

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