nlattessi

Seminario_TP3_EJ04

May 9th, 2012
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Lisp 0.12 KB | None | 0 0
  1. (defun posnum (num lista &optional (cont 1))
  2.     (if (eq num cont)
  3.         (car lista)
  4.         (posnum num (cdr lista) (+ cont 1))
  5.     )
  6. )
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