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Re: Count of words that match in an array

by songahji (Friar)
on May 09, 2005 at 18:00 UTC ( [id://455256]=note: print w/replies, xml ) Need Help??


in reply to Count of words that match in an array

Get the intersection (on sets operation) 
@Array1 = ("A", "B", "C", "D");
@Array2 = ("J", "C", "T", "A");
foreach $e (@Array1, @Array2) {
    $union{$e}++ && $intersect{$e}++
}
@intersect = keys %intersect;

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