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  1. (loop for str = "1"
  2.       then (format nil "~{~a~}"
  3. 		   (nreverse (reduce (lambda (plist char)
  4. 						       (if (eq char (car plist))
  5. 								   (progn (incf (cadr plist)) plist)
  6. 								   `(,char 1 ,@plist)))
  7. 						     str
  8. 						     :initial-value nil)))
  9.       repeat 11
  10.       do (print str))
Success #stdin #stdout 0.03s 10608KB
comments (?)
stdin
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Standard input is empty
stdout
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"1" 
"11" 
"21" 
"1211" 
"111221" 
"312211" 
"13112221" 
"1113213211" 
"31131211131221" 
"13211311123113112211" 
"11131221133112132113212221"
https://ideone.com/EvOyso
language:
Common Lisp (clisp 2.49.92)
created:
11 years ago
visibility:
public

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