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  1. (defun prl (k m)
  2.   (labels ((print-line (n)
  3.             (cond ((> n 0)
  4.                    (princ n)
  5.                    (print-line (- n 1)))
  6.                   (t (terpri)))))
  7.           (print-line k)
  8.           (cond ((> m 1)
  9.                  (prl (+ k 1) (- m 1))))))
  10.  
  11. (prl 3 4)
  12. (terpri)
  13. (prl 1 4)
Success #stdin #stdout 0.02s 10552KB
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stdin
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Standard input is empty
stdout
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321
4321
54321
654321

1
21
321
4321
https://ideone.com/aLZxXu
language:
Common Lisp (clisp 2.49.92)
created:
10 years ago
visibility:
public

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