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  1. ; your code goes here
  2. (define (same-parity x xs)
  3.   (define parity (remainder x 2))
  4.   (define (iter xs acc)
  5.     (if (null? xs)
  6.         (reverse acc)
  7.         (if (= (remainder (car xs) 2) parity)
  8.             (iter (cdr xs) (cons (car xs) acc))
  9.             (iter (cdr xs) acc))))
  10.   (iter xs '()))
  11.  
  12. (define xs (list 1 2 3 4 5 6 7 8 9 10))
  13.  
  14. (display (same-parity 1 xs))
  15. (newline)
  16. (display (same-parity 2 xs))
  17. (newline)
Success #stdin #stdout 0.03s 8616KB
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stdin
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Standard input is empty
stdout
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(1 3 5 7 9)
(2 4 6 8 10)
https://ideone.com/6qnvd5
language:
Scheme (guile 2.2.4)
created:
8 years ago
visibility:
public

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