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Thread: 3 Scheme
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2nd June 2009 18:37 #1
3 Scheme
, Scheme, "- " 3 . Scheme . :
1- S:
a) ,
)
2- m n. : n(n + m)(n + 2m)(n + 3m)...(n + mm)
- Let ,
3- S, (a, b].
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2nd June 2009 19:28 #2, .Code:
(define (zad1a list) (if (null? list) list (if (< (car list) 0) (cdr list) (cons (car list) (zad1a (cdr list)))))) (define (zad1b list) (if (null? list) list (if (< (car list) 0) ( (cdr list)) (cons (car list) (zad1b (cdr list)))))) (define (zad2 n m) (define (iter i m) (if (<= i m) (* (+ n (* i m)) (iter (+ i 1) m)) 1)) (iter 0 m)) (define (zad3 list a b) (define (count list br) (if(null? list) br (if( and (<= (car list) b) (> (car list) a)) (count (cdr list) (+ br 1)) (count (cdr list) br)))) (count list 0))
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2nd June 2009 19:55 #3




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