Created
November 23, 2010 13:47
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fib DP ver
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(define dp (make-vector 1000)) | |
(vector-set! dp 0 1) | |
(vector-set! dp 1 1) | |
(define (fib cur dest) | |
(if (> cur dest) | |
(vector-ref dp dest) | |
(begin (vector-set! dp cur (+ (vector-ref dp (- cur 1)) (vector-ref dp (- cur 2)))) | |
(fib (+ cur 1) dest)))) | |
(display (fib 2 99)) ;;; 100番目 |
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