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- Sum Lists' in Scheme; Write a function named sum-lists in Scheme that takes two lists as input and returns a new list containing the sum of each corresponding pair of elements. You may assume that the lists have the same length. For example, (sum-lists '(1 2 3 4) '(5 6 7 8)) should return '(6 8 10 12) (every-other '() '()) should return '()emacs/lisp function Write a function in Lisp that takes one parameter which we can assume to be a list. The function should print all the elements of the list using the function princ and a space between them. Use the function mapc for this purpose.Show a few examples of testing this function. Show one example using the function apply and one using the function funcall.emacs/lisp function Write a function that takes one parameter that is a list of numbers and returns true (t) if all the elements of the list are multiples of the first one and nil otherwise.
- - use scheme R5RS (no other language) for upvote - do not use do or set 1. Define the function (siftNum lst). This function should resolve to all the numbers in the list, lst. For example: (siftNum '(a 8 2 1 m l 90 p 2)) resolves to '(8 2 1 1 90 2)def optimize_tail_calls(original_scheme_eval): """Return a properly tail recursive version of an eval function.""" def optimized_eval(expr, env, tail=False): """Evaluate Scheme expression EXPR in Frame ENV. If TAIL, return an Unevaluated containing an expression for further evaluation. """ if tail and not scheme_symbolp(expr) and not self_evaluating(expr): return Unevaluated(expr, env) result = Unevaluated(expr, env) # fill in code code here while isinstance(result, Unevaluated): #code here return optimized_eval scheme_eval = optimize_tail_calls(scheme_eval)4-Write a Scheme procedure that takes a list and returns the sum of the number that are less than 6 in the list. For example, (sumeven '(1 (2 ( 5 () 6) 3 8) ) ) returns 11. Then, Manually trace your procedure with the provided example.
- Write a function two in Scheme that takes a single parameter, a list of integers. The function tworeturns #t if the list of integers includes two equal integers. Otherwise, it returns #f. The list L is flat, i.e., it does not contain sublists.Note that the function must be called two and that it takes a single parameter, a list. Functions with other names or other parameters will not be graded.Examples(two ‘(7 7)) returns #t(two ‘(5 3 3 4)) returns #t (two ‘(11 3 5 11)) returns #t(two ‘(1 2 3 4 5 6 10)) returns #f (two ‘(24 14 11 4 6)) returns #f The whole solution must be packed in one recursive function two which must look as follows:(define two (lambda (list) (cond...)))In other words, you have to define a single COND statement. Nested COND statements are not allowed. Inside COND, you can use ONLY the following constructs: - null?- car- cdr- cons- else- =- #t- #f- two- list - parentheses This needs to be written in R5RS language (Racket)Write a Scheme function that computes the mean of a simple list of integers. For example, the function that takes (1 2 3 4) will return 2.5. (hint: you may use the built-in method (length lst) to get the list length)Computer Science In Racket, write a recursive function called "first-index" that returns only the first index of the specified element in a list. Ex : (first-index '1 '(3 5 1 4 5 2 1)) Would return 3 The function must take 2 arguments, the item you wish to find its index and a list
- Write a function named select-multiples value 1st in Scheme that takes an integer and a list of integers and uses fold (or reduce) to return list of elements that are multiples of value. You must use either fold or reduce to do the vast majority of the work. (You may do a little pre- and post- processing outside the call to fold.) You may use the built-in fold method by adding the line (require 'list-lib), or you can use your own implementation. You may not use the built-in select function. The built-in fold function has parameters in this order: action partial-result lst. You can detect whether num is a multiple of value by checking whether (mod num value) is 0. For example, (my-select 5 (5)) should return (5) • (my-select 3 '(7 9)) should return () • (my-select 5 '(1 15 25)) should return (15 25) • (my-select 2 '()) should return ()write a c program by using these structures and functions. Your output should match exactly. struct node { int value; struct node *next; struct node *prev; }; typedef struct dllist{ struct node* head; struct node* tail; } DoublyLinked List; typedef DoublyLinked List* DLLP; struct node* new_unconnected_node(int value); DLLP make_empty_list(); DLLP make_list(struct node* head, struct node* tail); bool is_empty(DLLP dll); void sort_list(DLLP dll); void print_list_reversed(DLLP dll); void print_list(DLLP dll); void append_node(DLLP dll, struct node* n); void free_list(DLLP dll); gcc-Wall-Werror selsortpl.c dlintlist.c -o selsortpl ./selsortpl -s 12 54 215 21 Frwd: [12 54 215 21] Rrsd: [1 2 5 21 54 21] Srtd: [11225 21 54]QUESTION: NOTE: This assignment is needed to be done in OOP(c++/java), the assignment is a part of course named data structures and algorithm. A singly linked circular list is a linked list where the last node in the list points to the first node in the list. A circular list does not contain NULL pointers. A good example of an application where circular linked list should be used is a items in the shopping cart In online shopping cart, the system must maintain a list of items and must calculate total bill by adding amount of all the items in the cart, Implement the above scenario using Circular Link List. Do Following: First create a class Item having id, name, price and quantity provide appropriate methods and then Create Cart/List class which holds an items object to represent total items in cart and next pointer Implement the method to add items in the array, remove an item and display all items. Now in the main do the following Insert Items in list Display all items. Traverse…