Sorry, I can't name the sub after myself since ;-) doesn't compile :)
sub cLive {
my $rev = reverse $_[0];
my $len='';
my $d;
for (0..length($_[0])-1) {
my $c= join'',map { substr($rev,$_,1) eq substr($_[0],$_,1) ?
+1 : 0 } 0..length($_[0])-1;
my $match = (sort {length($a)<=>length($b)} $c =~ /(1+)/g)[-1]
+;
$match>$len and $len=$match and $d=$c;
$rev = substr($rev,1).substr($rev,0,1);
}
$d=~s/(.*)($len).*/substr($_[0],length($1),length($len))/e;
return $d;
}
cLive ;-)
ps - if more than one longest palindrome, first is returned.
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