1556 shaares
120 private links
120 private links
2 results
tagged
regex
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Regex
The prolific Perl hacker Abigail is famous for posting enigmatic but ingenious one-liner scripts in her signatures on newsgroups.
perl -wle 'print "Prime" if (1 x shift) !~ /^1?$|^(11+?)\1+$/' [number]