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Summary CPSC 110 PSET 6 Solution
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CPSC 110 PSET 6 Solution
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;; The first three lines of this file were inserted by DrRacket. They recordmetadata
;; about the language level of this file in a form that our tools can easily
process.
#reader(lib "htdp-beginner-abbr-reader.ss" "lang")((modname pset-06-solution)
(read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-
decimal #f #t none #f () #t)))
;; 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 pset-06); Do not edit or remove this tag
(@problem 1)
(@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 have this course as a pre-requisite
;; ListOfCourse is one of:
;; - empty
;; - (cons Course ListOfCourse)
;; interp. a list of courses
(define LOC0 empty)
(define C322 (make-course 322 3 LOC0))
(define C320 (make-course 320 3 LOC0))
(define C319 (make-course 319 4 LOC0))
(define C317 (make-course 317 3 LOC0))
(define C314 (make-course 314 3 LOC0))
(define C313 (make-course 313 3 LOC0))
(define C312 (make-course 312 3 LOC0))
(define C311 (make-course 311 3 LOC0))
(define LOC1 (list C319))
(define C310 (make-course 310 4 LOC1))
(define C304 (make-course 304 3 LOC0))
(define C302 (make-course 302 3 LOC0))
(define C303 (make-course 303 3 LOC0))
(define LOC2 (list C304 C313 C314 C317 C320 C322))
(define C221 (make-course 221 4 LOC2))
(define LOC3 (list C313 C317))
(define C213 (make-course 213 4 LOC3))
(define LOC4 (list C213 C221 C310 C311 C312))
(define C210 (make-course 210 4 LOC4))
(define C203 (make-course 203 3 LOC0))
(define C189 (make-course 189 1 LOC0))
(define LOC5 (list C189 C203 C210 C302 C303))
(define C110 (make-course 110 4 LOC5))
(define C100 (make-course 100 3 LOC0))
(define (fn-for-course c)
(... (course-number c)
(course-credits c)
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