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Re: Finding longest palindrome from a string

by bgreenlee (Friar)
on Aug 13, 2004 at 12:48 UTC ( #382640=note: print w/ replies, xml ) Need Help??


in reply to Finding longest palindrome from a string 

sub bgreenlee {
    my $str = shift;
    my $longest = '';
    while ($str =~ /(?=(.*)(.?)((??{reverse $1})))/g) {
        $longest = "$1$2$3" if length("$1$2$3") > length($longest);
    }
    return $longest;
}

[download]

-b


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