99 Bottles of Beer

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Language PLT Scheme

(language is used to teach beginners (DE)

Date:	05/27/09
Author:	Thure Dührsen
URL:	n/a
Comments:	2
Info:	http://www.plt-scheme.org/
Score:	(2.98 in 45 votes)

(define (bottles n)
  (display
   (string-append 
    (cond ((= n 0) "No more bottles")
          ((= n 1) "One bottle")
          (else (string-append (number->string n) " bottles"))) " of beer")))

(define (beer n)
  (if (> n 0)
      (begin
        (bottles n) (display " on the wall") (newline)
        (bottles n) (newline)
        (display "Take one down, pass it around") (newline)
        (bottles (- n 1)) (display " on the wall") (newline)
        (newline)
        (beer (- n 1))
        )      
      null
      )
  )

(beer 99)

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Comments

MoonJackie said on 03/15/10 10:18:35

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barrym said on 07/15/10 05:16:22

The source runs fine, but the output suffers from missing punctuation and
a missing final verse!

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