1 12687dd9 2023-08-04 jrmu ;; The first three lines of this file were inserted by DrScheme. They record metadata
 2 12687dd9 2023-08-04 jrmu ;; about the language level of this file in a form that our tools can easily process.
 3 12687dd9 2023-08-04 jrmu #reader(lib "htdp-intermediate-reader.ss" "lang")((modname 19.1.5) (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 12687dd9 2023-08-04 jrmu ;; mini : nelon  ->  number
 5 12687dd9 2023-08-04 jrmu ;; to determine the smallest number
 6 12687dd9 2023-08-04 jrmu ;; on alon
 7 12687dd9 2023-08-04 jrmu (define (mini alon)
 8 12687dd9 2023-08-04 jrmu   (cond
 9 12687dd9 2023-08-04 jrmu     [(empty? (rest alon)) (first alon)]
10 12687dd9 2023-08-04 jrmu     [else (cond
11 12687dd9 2023-08-04 jrmu 	    [(< (first alon) 
12 12687dd9 2023-08-04 jrmu 		(mini (rest alon)))
13 12687dd9 2023-08-04 jrmu 	     (first alon)]
14 12687dd9 2023-08-04 jrmu 	    [else
15 12687dd9 2023-08-04 jrmu 	     (mini (rest alon))])]))
16 12687dd9 2023-08-04 jrmu      	
17 12687dd9 2023-08-04 jrmu ;; maxi : nelon  ->  number
18 12687dd9 2023-08-04 jrmu ;; to determine the largest number
19 12687dd9 2023-08-04 jrmu ;; on alon
20 12687dd9 2023-08-04 jrmu (define (maxi alon)
21 12687dd9 2023-08-04 jrmu   (cond
22 12687dd9 2023-08-04 jrmu     [(empty? (rest alon)) (first alon)]
23 12687dd9 2023-08-04 jrmu     [else (cond
24 12687dd9 2023-08-04 jrmu 	    [(> (first alon)
25 12687dd9 2023-08-04 jrmu 		(maxi (rest alon)))
26 12687dd9 2023-08-04 jrmu 	     (first alon)]
27 12687dd9 2023-08-04 jrmu 	    [else
28 12687dd9 2023-08-04 jrmu 	     (maxi (rest alon))])]))