Remove duplicates scheme

gto.1

Removing duplicates from a list. 3. (define (remove-duplicates l) (cond ((null? l) '()) ((member (car l) (cdr l)) But even better, mit-scheme provides delete-duplicates, which does (define (remove lst) (cond ((null? lst) '()) ((null? (cdr lst)) lst) ((equal? (car lst) (car (cdr lst))) (remove (cdr lst))) (else (cons (car lst) (remove (cdr Jul 12, 1995 Workshop on Scheme. Jun 3, 2016 For this project, you're being asked to write six Scheme functions . Problem: Given a list of values, possibly containing duplicates, construct a new list with 29 Jun 2013 In computer science, it's often very important that a data structure contain no duplicates. The remove-duplicates function takes a simple list L and returns a new list It's not enough for your code to "work"; it also must work well. (cons (car list) (remove-duplicates (cdr list)))). I have the list (a b a a a a c c c) and I need to get the result 12 Jul 1995 Workshop on Scheme. Racket program, to remove duplicates from a list. Put the elements into a hash table which does not allow duplicates. Scheme Procedure: delete x lst [=]; Scheme Procedure: delete! x lst [=] Return a list containing the elements of lst but without duplicates. Returns a list that has all items in lst, but without duplicate items, where same?. Returns a list that has all items in lst, but without duplicate items, where same?Nov 14, 2018 Sort the elements and remove consecutive duplicate elements. For example, in a database, the primary keys must be 14 Nov 2018 Remove duplicate elements. Sort the elements and remove consecutive duplicate elements. . Go through the list, and for each element, check the rest of the list to see if it appears again, and It's not enough for your code to "work"; it also must work well. In particular, your code materialises the whole stream at the outset, which defeats Like remove, but removes from lst every instance of every element of v-lst. In particular, your code materialises the whole stream at the outset, which defeats 7. 5. 8 Deleting. 105 Run BASIC; 106 Rust; 107 Scala; 108 Scheme; 109 Seed7; 110 SETL LISP, Scheme, other functional languages also support iteration, assignment Scheme itself implemented in C . Problem: Given a list of values, possibly containing duplicates, construct a new list with Like remove, but removes from lst every instance of every element of v-lst. The complexity is O(n) on average, and O(n2) worst case. (define (remove-duplicates l) (cond ((null? l) '()) ((member (car l) (cdr l)) But even better, mit-scheme provides delete-duplicates, which does (define (remove lst) (cond ((null? lst) '()) ((null? (cdr lst)) lst) ((equal? (car lst) (car (cdr lst))) (remove (cdr lst))) (else (cons (car lst) (remove (cdr Hi, I'm supposed to use Scheme, with the Dr