RosettaCodeData/Task/Knuths-algorithm-S/PicoLisp/knuths-algorithm-s.l

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(de s_of_n_creator (@N)
(curry (@N (I . 0) (Res)) (Item)
(cond
((>= @N (inc 'I)) (push 'Res Item))
((>= @N (rand 1 I)) (set (nth Res (rand 1 @N)) Item)) )
Res ) )
(let Freq (need 10 0)
(do 100000
(let S_of_n (s_of_n_creator 3)
(for I (mapc S_of_n (0 1 2 3 4 5 6 7 8 9))
(inc (nth Freq (inc I))) ) ) )
Freq )