1 ;; The first three lines of this file were inserted by DrScheme. They record metadata
2 ;; about the language level of this file in a form that our tools can easily process.
3 #reader(lib "htdp-intermediate-reader.ss" "lang")((modname 18.1.13) (read-case-sensitive #t) (teachpacks ((lib "draw.ss" "teachpack" "htdp"))) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ((lib "draw.ss" "teachpack" "htdp")))))
4 ;; maxi : non-empty-lon  ->  number
5 ;; to determine the largest number on alon
6 (define (maxi alon)
7   (cond
8     [(empty? (rest alon)) (first alon)]
9     [else (cond
10             [(> (first alon) (maxi (rest alon))) (first alon)]
11             [else (maxi (rest alon))])]))
12 
13 (define (maxi2 alon)
14   (cond
15     [(empty? (rest alon)) (first alon)]
16     [else (local ((define r (maxi2 (rest alon))))
17             (cond
18               [(> (first alon) r) (first alon)]
19               [else r]))]))
20 
21 #|
22 (maxi (list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35))
23 (maxi2 (list 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35))
24 |#