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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: (3.02 in 44 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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>>  MoonJackie said on 03/15/10 10:18:35

MoonJackie Buildings are not cheap and not everybody can buy it. But, <a href="http://lowest-rate-loans.com/topics/home-loans">home loans</a> are created to aid different people in such hard situations.

>>  barrym said on 07/15/10 05:16:22

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

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