Completed file for problem set 6. 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 problems.
;; 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-06); 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)
;; Below is the start of a data definition called Course that represents limited
;; information about UBC courses. Below there are only two example data.
;; Please complete this definition by adding constants C110, C213, C313 and
C317
;; which are representations of the descendent tree for 110, 213, 313 and 317.
;; You can find the information you need at
;; https://cs110.students.cs.ubc.ca/psets/pset-06-image.png
;;
;; NOTE 1: Use the information in the image above, rather than any other
source.
;; We are significantly simplying the information.
;;
;; NOTE 2: Do this very carefully, the autograder wants to see correct results
;; from the functions you design to operate on this data.
;;
, ;; NOTE 3: The tree you will make for C110 will be a bit odd because 210 has
110
;; as a pre-req, and both 213 and 221 have 210 as a pre-req, and 313 has
;; 213 AND 221 as a pre-req, and 317 has 213 AND 221 as a pre-req. As a
;; result, 313 and 317 will both show up twice in your descendent tree
; for C110. This is okay for this problem set.
;; NOTE 4: Expect this step of the problem set to take you some time.
(@htdd Course ListOfCourse)
(define-struct course (number credits dependents))
;; Course is (make-course Natural Natural ListOfCourse)
;; interp. a course with a course number,
;; the number of credits the course is worth, and a
;; list of courses that list this course as a direct pre-requisite
;; ListOfCourse is one of:
;; - empty
;; - (cons Course ListOfCourse)
;; interp. a list of courses
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