fork download
copy 
  1. (defun lotto-column ()
  2.   "Return 6 unique numbers as a list"
  3.   (let ((nums nil))
  4.     (loop
  5.        (when (= (list-length nums) 6)
  6.          (return))
  7.        (let ((val nil))
  8.          (loop
  9.             (setf val (random 42))
  10.             (when (not (numberp (position val nums)))
  11.               (return)))
  12.          (push val nums)))
  13.     nums))
  14.  
  15. (defun lotto-columns (x)
  16.   (dotimes (i x)
  17.     (dolist (num (lotto-column)) 
  18.       (format t "[~2a] " num))
  19.     (format t "~%")))
  20.  
  21.  
  22. (lotto-columns 4)
  23.  
Success #stdin #stdout 0.01s 25192KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
[37] [35] [33] [5 ] [31] [28] 
[36] [39] [16] [31] [26] [4 ] 
[28] [24] [18] [17] [33] [25] 
[12] [8 ] [41] [7 ] [13] [28]
https://ideone.com/al6UFB
language:
Common Lisp (sbcl 1.4.16)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!