Assignment 11: Type Inference (foo y z) (== 5 x) Show pagesource Log In (foo `(,x ,y ,z) 5) (foo u v) x y z u v > (run* q (!- ‘() #t q)) (Bool) > (run* q (!- ‘() 17 q)) (Nat) > (run* q (!- ‘() ‘(zero? 24) q)) (Bool) > (run* q […]
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Assignment 9: ParentheC Interpreter Show pagesource Log In code meet with one of the AIs to demonstrate your knowledge of your 4/1 define-union main (define-union expr (const cexp) (var n) (if test conseq alt) (mult nexp1 nexp2) (sub1 nexp) (zero nexp) (letcc body) (throw kexp vexp) (let exp body) (lambda body) (app rator rand)) ;;
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Assignment 13: Pie 1 intriguing-word (claim intriguing-word Atom) lucky-num (claim lucky-num Nat) to-go-order (claim to-go-order (Pair Nat Atom)) MyFirstType (claim MyFirstType U) my-thing-and-atom (claim my-thing-and-Atom (Pair MyFirstType U)) with-Nats with-Nats (claim with-Nats (-> (-> Nat Nat Nat) (Pair Nat Nat) Nat)) U Nats Nats Nats (check-same Nat (with-Nats ( (n m) n) (cons 1 2))
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Assignment 1: Recursion and Higher-Order Functional Abstractions append naturally recursive #lang typed/racket a1.rkt append type We’ve recently updated the course policies for the semester. Please read through them before beginning the rest of the assignment. Show pagesource Log In a1.rkt countdown insertR functions need only hold over eqv?-comparable structures. For this and later questions, these
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Assignment 8: Registerization Show pagesource Log In (define ack (lambda (m n k) (cond [(zero? m) (k (add1 n))] [(zero? n) (ack (sub1 m) 1 k)] [else (ack m (sub1 n) (lambda (v) (ack (sub1 m) v k)))]))) (define depth (lambda (ls k) (cond [(null? ls) (k 1)] [(pair? (car ls)) (depth (car ls) (lambda
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Assignment 10: Introduction to Logic Programming Show pagesource Log In (require “mk.rkt”) (require “numbers.rkt”) how miniKanren arrived at the answer. assoc reverse stutter For each problem, explain (define assoc (lambda (x ls) (match-let* ((`(,a . ,d) ls) (`(,aa . ,da) a)) (cond ((equal? aa x) a) ((not (equal? aa x)) (assoc x d)))))) (define reverse
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Assignment 2: Free, Bound, and Lexical Address lambda Functions defined in Part 1 can(actually, should) be used as helper functions for the later problems. nth-cdr nth-cdr union lang.org/reference/pairs.html?q=memv&q=list- memv [http://docs.racket- list-ref Show pagesource Log In (: list-ref (All (A) ( (Listof A) Number A))) (define list-ref (lambda (ls n) (letrec ([nth-cdr : ( Number (Listof
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Assignment 12: Introduction to Monads set! 1. maybe findf 2. partition writer writer Show pagesource Log In (Nothing) > (findf-maybe symbol? ‘(1 2 c)) (Just ‘c) > (findf-maybe boolean? ‘(#f 1 2 c)) (Just #f) > (findf-maybe number? ‘(a b c)) (Nothing) > (run-writer (partition-writer even? ‘(1 2 3 4 5 6 7 8 9
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Assignment 3: Environments and Interpreters Show pagesource Log In env apply-env empty-env four all four interpreters a3.rkt You must define two sets of environment helpers: one that uses functional (higher-order) representation of environments, and one that uses data-structural representation of extend- environments. value-of-fn value-of tagged list value-of-ds (define value-of …) (define value-of-fn …) (define empty-env-fn
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Assignment 7: Continuations and Representation Independence Show pagesource Log In empty-k last-non-zero (define last-non-zero (lambda (ls) (let/cc k (letrec ((last-non-zero (lambda (ls) (cond ;; fill in lines here )))) (last-non-zero ls))))) > (last-non-zero ‘(0)) () > (last-non-zero ‘(1 2 3 0 4 5)) (4 5) > (last-non-zero ‘(1 0 2 3 0 4 5)) (4
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