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- Count word dominators def count_word_dominators(words): If you already solved the earlier count_dominators problem, you might notice that even though the problem was originally stated for lists of integers, the logic of domination did not depend on this fact in any way. As long as the individual elements can be compared with each other for order, the Pythonic spirit of duck typing allows the very same count_dominators function to handle a list of strings just as smoothly as it would handle a list of integers! For example, the function call count_dominators(['dog','emu','cat','bee']) would return 3, since 'emu', 'cat'and 'bee' dominate all words coming after them in the list when using the lexicographic order comparison. If your count_dominators function does not already pass this hurdle, try to rewrite it to contain no baked-in assumptions about elements being specifically integers. However, things become more interesting if we define domination between words of equal length with a…5. Questions about the problems that are e-mailed to me will not be answered before the submission deadline. 6. In this document the term list should be understood to mean proper list. 1. Define a LISP function MIN-2 with the following properties. MIN-2 takes two arguments, A and B. If the arguments A and B are numbers such that AB, then MIN-2 returns B. If A or B is not a number, then MIN-2 returns the symbol ERROR Examples: (MIN-2 21.3 7/2) => 7/2 (MIN-2 17.5 29) = 17.5 (MIN-2 (31) (54) => ERROR (MIN-2 5 'APPLE) => ERROR LISP Assignment 3: Page 1 of 3 2.[Exercise 4 on p. 72 of Wilensky] Write a LISP function SAFE-AVG that takes 2 arguments and returns the average of those arguments if they are numbers. If one or both of the arguments is not a number, the function should return NIL. Examples: (SAFE-AVG 23 47.4) => 35.2 (SAFE-AVG 3 8) = 11/2 (SAFE-AVG 'ORÁNGE PLUM) => NIL (SAFE-AVG (23.1) 47.3) => NIL 3.[Exercise 2 on p. 72 of Wilensky] Write a LISP predicate ODD-GT-MILLION that takes…Computer Science Multiple choice (a) Vending machine is accepting a regular set as input. (b) Vending machine is accepting a context-free set but not a regular set as input. (c) The syntactically correct C++ programs form a context-free set. (d) The syntactically correct C++ programs form a regular set.
- Assignment 6 - More on ListsWrite pseudo-code not Python for problems requiring code. You are responsible for the appropriate level of detail.The questions in this assignment give you the opportunity to explore a new data structure and to experiment with the hybrid implementation in Q3. 1. A deque (pronounced deck) is an ordered set of items from which items may be deleted at either end and into which items may be inserted at either end. Call the two ends left and right. This is an access-restricted structure since no insertions or deletions can happen other than at the ends. Implement the deque as a doubly-linked list (not circular, no header). Write InsertLeft and DeleteRight.2. Implement a deque from problem 1 as a doubly-linked circular list with a header. Write InsertRight and DeleteLeft.3. Write a set of routines for implementing several stacks and queues within a single array. Hint: Look at the lecture material on the hybrid implementation.6. List the elements of the following sets. A= {x | x is a real number such that x2 = 1} B= {x| x is an integer such that x2 - 3 = 0}Q: Use recursive definition for the following languages Define the language L, having even number of a’s and even number of b’s. Define the language L, in which the a’s appear tripled means a’s appears in chunk of 3, 6,… Define the language L, in which all words contain only 2 b’s but any number of a’s
- Q1: Assignment Difficulty Dan has a list of problems suitable for Assignment 4. The difficulties of these problems are stored in a list of integers a. The i-th problem’s difficulty is represented by a[i] (the higher the integer, the more difficult the problem). Dan is too busy eating saltines to worry about Assignment 4 decisions, so he asks Michael the TA to select at least two problems from the list for the assignment. Since there are many possible subsets of the problems to consider and Michael has a life, he decides to consider only sublists (definition follows) of the list of problems. To make grading the assignment easier, Michael wants to pick problems that don’t vary too much in difficulty. What is the smallest difference between the difficulties of the most difficult selected problem and the least difficult selected problem he can achieve by selecting a sublist of length at least 2 of the original list of problems? Definition: A sublist of a list a is any list you can obtain…1 b) What are the correct parenthesis brackets for lists, tuples, dictionaries andsets? Explain each of these built-in data types in detail.A dequeue is a list from which elements can be inserted or deleted at either end a. Develop an array based implementation for dequeue. b. Develop a pointer based implementation dequeue.
- 11. deep-reverse Define a function similar to the built-in reverse function, except that it acts recursively, reversing the order the members of any nested sublists. You may not use the built-in reverse function as a helper function. However, you may use your own my-reverse function as a helper function. Input: A single list which may contain an arbitrary number of elements and sublists, each sublists may also contain an arbitrary number of elements and sublists, nested to an any depth. Output: A new list which contains all elements in reverse order, as well as recursively reverse order all members of sublists. Example: > (deep-reverse (((4 3) 6) ((7 2 9) (5 1)))) '(((15) (9 2 7)) (6 (34))) > (deep-reverse ((1 2) 3)) (3 (21)) > (deep-reverse '((4 5))) '((5 4)) > (deep-reverse (3 6 9 12)) (12 963)Please just use main.cpp,sequence.cpp and sequence.h. It has provided the sample insert()function. No documentation (commenting) is required for this assignment. This assignment is based on an assignment from "Data Structures and Other Objects Using C++" by Michael Main and Walter Savitch. Use linked lists to implement a Sequence class that stores int values. Specification The specification of the class is below. There are 9 member functions (not counting the big 3) and 2 types to define. The idea behind this class is that there will be an internal iterator, i.e., an iterator that the client cannot access, but that the class itself manages. For example, if we have a Sequence object named s, we would use s.start() to set the iterator to the beginning of the list, and s.advance() to move the iterator to the next node in the list. (I'm making the analogy to iterators as a way to help you understand the point of what we are doing. If trying to think in terms of iterators is confusing,…python assignment Matrix class Implement a matrix class (in matrix.py). a) The initializer should take a list of lists as an argument, where each outer list is a row, and each value in an inner list is a value in the corresponding row. b) Implement the __str__ method to nicely format the string representation of the matrix: one line per row, two characters per number (%2d) and a space between numbers. For example: m = Matrix([[1,0,0],[0,1,0],[0,0,1]]) print(m)> 1 0 0> 0 1 0> 0 0 1 c) Implement a method scale(factor) that returns a new matrix where each value is multiplied by scale. For example: m = Matrix([[1,2,3],[4,5,6],[7,8,9]])n = m.scale(2)print(n)> 2 4 6> 8 10 12>14 16 18print(m)> 1 2 3> 4 5 6> 7 8 9 d) Implement a method transpose() that returns a new matrix that has been transposed. Transposing flips a matrix over its diagonal: it switches rows and columns. m = Matrix([[1,2,3],[4,5,6],[7,8,9]])print(m)> 1 2 3> 4 5 6> 7 8…