Completed file for problem set 10. Remember to copy the pdf file to Dr Racket for a better view. This file should be exactly identical except that the file has answers for each problem.
;; DO NOT PUT ANYTHING PERSONALLY IDENTIFYING BEYOND YOUR
CWL IN THIS FILE.
;; YOUR CWLs WILL BE SUFFICIENT TO IDENTIFY YOU AND, IF YOU HAVE
ONE, YOUR
;; PARTNER.
;;
(require spd/tags)
(@assignment psets/pset-10); Do not edit or remove this tag
;; If you are:
;; - A 110 or 107 student replace the first set of '???'s with your cwl.
;; For problem sets, If you have a partner, please replace the second
;; set of '???'s with their cwl. Remember this, it is what you will
;; do with these @cwl annotations for the whole course.
;; - A UBC Extended Learning student, replace the first set of ??? with
;; your email address as confirmed in the email you received from
;; extended learning. The handin password is also in that email.
;; Remember this, it is what you will do with these @cwl annotations
;; for the whole course.
;;
(@cwl ??? ???)
(@problem 1)
;;
;; Complete the design of the following function.
;;
;; Hint: sometimes for functions with accumulators it is useful for
;; the trampoline to deal with the special case of the empty
;; list or empty tree using an if expression.
;;
(@htdf max-num-repeats)
(@signature (listof String) -> Natural)
;; produce maximum number of times same string appears consecutively in los0
(check-expect (max-num-repeats empty) 0)
(check-expect (max-num-repeats (list "cat")) 1)
(check-expect (max-num-repeats (list "cat" "bird" "dog")) 1)
(check-expect (max-num-repeats (list "cat" "cat" "bird" "dog")) 2)
(check-expect (max-num-repeats (list "cat" "cat" "bird" "dog" "dog" "dog"))
(define (max-num-repeats los)
;;current-string is String; the previous first string of the list
;;count is Natural; the number of times that current has been seen so far
;;rsf is Natural; the highest count so far
(@problem 2)
;;
;; Complete the design of the following function.
;;
;; Your solution MUST BE TAIL RECURSIVE.
;;
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