07/12/22 01:33:19
>>763
(define (assoc key alist)
(and (pair? alist)
(let loop ((ls alist))
(if (equal? key (caar ls))
(car ls)
(loop (cdr ls))))))
07/12/22 01:33:19
>>763
(define (assoc key alist)
(and (pair? alist)
(let loop ((ls alist))
(if (equal? key (caar ls))
(car ls)
(loop (cdr ls))))))