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- #!/usr/bin/ruby
- func caesar(msg, key, decode=false) {
- decode && (key = (26 - key));
- msg.gsub(/([A-Z])/i, {|c| ((c.uc.ord - 65 + key) % 26) + 65 -> chr});
- };
- var msg = 'THE FIVE BOXING WIZARDS JUMP QUICKLY';
- var enc = caesar(msg, 10);
- var dec = caesar(enc, 10, true);
- say "msg: #{msg}";
- say "enc: #{enc}";
- say "dec: #{dec}";
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