Computer Science > Lab Report > University of British Columbia - CPSC 110CPSC 110 lab-search. (All)

University of British Columbia - CPSC 110CPSC 110 lab-search.

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;; CPSC 110 - Search Lab ;; Clown is String ;; interp. The name of a clown (define M "Marny") (define N "Nifty") (define O "Oscar") (define P "Porky") (define R "Rascal") (define S "Sunny") (... define V "Vinny") #; (define (fn-for-clown c) (... c)) ; PRELAB: Define examples of ChoiceState that correspond to the two scenarios ; (on the lab page) (define-struct chst (picked options)) ;; ChoiceState is (make-chst (listof Clown) (listof Clown)) ;; interp. (make-chst picked options) represents a moment during selection when: ;; - we have selected all of the clowns in picked ;; - we are still deciding whether to pick or skip the clowns in options ;; INVARIANT: all of the clowns in picks and options are unique. (define CH0 (make-chst (list) (list M N O P R S V))) ; no selections yet (define CH1 (make-chst (list M) (list O P R S V))) ; M picked, N skipped (define CH2 (make-chst (list M P V) (list))) ; picking is complete (define CH3 (make-chst empty (list V R O))) ;;Prelab 1 (define CH4 (make-chst (list R V) (list O))) ;;Prelab 1 (define CHs (make-chst (list S R P O M) empty)) ;; one of the solutions #; (define (fn-for-chst c) (... (fn-for-loc (chst-picked c)) (fn-for-loc (chst-options c)))) ;; ======================================================== ;; Functions ; PRELAB: Our main task in lab will be to design a function, called solve, ; that takes a choice state and tries to find a list of clowns that satisfy ; the criteria based from our choice state. Start the design of solve by writing ; its wish list entry. ; ; You should also identify which template elements you will need to blend ; together for the solve function. [Show More]

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