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Ingy döt Net 2013-06-05 21:47:54 +00:00
parent 1f1ad49427
commit 6f050a029e
2496 changed files with 37609 additions and 3031 deletions
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11
Task/Forward-difference/Racket/forward-difference.rkt Normal file
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#lang racket
(define (forward-difference list)
(for/list ([x (cdr list)] [y list]) (- x y)))
(define (nth-forward-difference n list)
(for/fold ([list list]) ([n n]) (forward-difference list)))
(nth-forward-difference 9 '(90 47 58 29 22 32 55 5 55 73))
;; -> '(-2921)