= {w ∈ {a, b}* | at least one prefix of w contains strictly more b’s than a’s.}. For example, baa, abb, abbbaa are in L, but aab, aabbab are not in L. a) Construct a PDA that accepts L by final state. b) Construct a PDA that accepts L by empty stack.
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L = {w ∈ {a, b}* | at least one prefix of w contains strictly more b’s than a’s.}.
For example, baa, abb, abbbaa are in L, but aab, aabbab are not in L.
a) Construct a PDA that accepts L by final state.
b) Construct a PDA that accepts L by empty stack.
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- Assume the function: void F(stack<T> &S){ } and we send a stack S to the function F, as a result of it Select one: a. Both (copy constructor and destructor) should not be called b. Destructor should be called c. Copy constructor should be called d. Both (copy constructor and destructor) should be called Clear my choiceAssume the function: void F(stack<T> &S){ } and we send a stack S to the function F, as a result of it Select one: a. Copy constructor should be called b. Both (copy constructor and destructor) should be called c. Both (copy constructor and destructor) should not be called d. Destructor should be calledAssume the function: void F(stack S){ } and if the class stack hasn't copy constructor and hasn't a destructor and we send a stack S to the function F, then we print the stack S, the output a. S becomes empty b. A syntax error will occur O c. S will have rubbish data O d. S will not change since S is passed by val
- Assume the function: void F(stack &S){ } and we send a stack S to the function F, as a result of it Select one: a. Both (copy constructor and destructor) should be called b. Destructor should be called O c. Copy constructor should be called d. Both (copy constructor and destructor) should not be calledProject 4: Maze Solver (JAVA) The purpose of this assignment is to assess your ability to: Implement stack and queue abstract data types in JAVA Utilize stack and queue structures in a computational problem. For this question, implement a stack and a queue data structure. After testing the class, complete the depth-first search method (provided). The method should indicate whether or not a path was found, and, in the case that a path is found, output the sequence of coordinates from start to end. The following code and related files are provided. Carefully ready the code and documentation before beginning. A MazeCell class that models a cell in the maze. Each MazeCell object contains data for the row and column position of the cell, the next direction to check, and a bool variable that indicates whether or not the cell has already been visited. A Source file that creates the maze and calls your depth-first search method. An input file, maze.in, that may be used for testing. You…Computer Science Java Programming ******* Write a Java application that will, given an appropriate data structure, will be able to track the following module and its dependencies as well as implement an appropriate search algorithm to create the correct graph for any given module. The graph will show all the corresponding dependent modules in their correct order of dependency. Must use Stack, either Double ArrayList or Linked List, and simple search to implement this. Module A: Dependencies: B D E K L Module B: Dependencies: F G M Module C: Dependencies: F Module D: Dependencies: G Module E: Dependencies: B A Module F: Dependencies: B Module G: Dependencies: NONE Module K: Dependencies: M Module L: Dependencies: Q Module M: Dependencies: A Module Q: Dependencies: NONE Ensure that dependencies are only visited only once. To test: Input A Your Output: Module A. Dependencies: B F G M D E K M L Q
- TRUE or FALSE? Answer the following question and state the reason why: cout<<list.back()<<endl; = The back member function returns a reference to the last element in the list. In a Dynamic Stack, the pointer top stays at the head after a push operation. During a Pop operation in Static Stack, the elements are being moved one step up. In a dynamic implementation of stack, the pointer top has an initial value of null.A- Declare a self-referential structure for a linked list having one data StudentNode field called GPA (float), and one pointer to StudentNode called next. B- Write a non-recursive function - that counts all the GPAS that are less than or equal to 2 in your linked list starting from the head of the list. Example: If the list is 1.9->2->3.5->4->1.8, the function should return 3. C- Write a recursive function that prints all the GPAS that are higher or equal to 3.5 in your linked list starting from the head of the list. Example: If the list is 1.9->2->3.5->4->1.8, the function should print: 3.5->4.Problem 1: Complete the following method for reversing the contents of a given stack. The method should use only the constructor and the methods push(), pop() and isEmpty(). Assume that the methods push(), pop() and isEmpty() methods are defined as they should be in a Stack class. Assume further that the Stack class has no argument constructor. Note: make sure that you don't include unnecessary spaces in your answers. public void reverse(Stack stack) { Stack tempStack1 = new Stack(); %3D while (!stack.isEmpty()) { tempStack1.push(_#01 ); } Stack tempStack2 = new Stack(); while (!tempStack1.isEmpty()) { tempStack2.push(_ #02 ); } while (!tempStack2.isEmpty()) { stack.push(_ #03 ); } }
- Define a stack class called DLStack, in such a way that it can store any type of data. All data in a DLStack must be stored in a DoublyLinkedList instance. Implement the following member methods: push – Pushes a new element into the stack. pop – Removes the top element from the stack. top – Retrieves the top element from the stack. IsEmpty – Returns true if the stack is empty, and false otherwise. Note: These operations should add or remove the element from the head of the DoublyLinkedList instance. Q1) Implement the following non-member function which reverses a given string. String reversal must be done using stack-based logic. void ReverseString(string &); Q2) Implement the following function which determines whether a given string is the reverse of the second one; for example “test string” is the reverse of “gnirts tset”. Reverse detection must be done using stack-based logic. bool IsReverse(const string &, const string &);…Q#1: In each plastic jar of M&M’s candy, random colored candies are stored. Your little brother/sister likes only the yellow ones, so he/she carefully take out all the yellow candies, one by one, and eats them, and keep the other in order so that he/she can return them to the container, in exactly the same order as they are before, minus the yellow ones. Implement using stack data structure.Using Java.C++ Consider the following function as a property of a LinkedBag that contains a Doubly Linked List. Assume a Node has pointers prev and next, which can be read and changed with the standard get and set methods. Assume that the doubly linked list is: 1 <--> 2 <--> 3 <--> 4 <--> 5 <-->6 If you are uncertain what the above diagram depicts, it is a doubly linked list such that: The head of this doubly linked list is the node that contains the value 1. The tail of this doubly linked list is the node that contains the value 6. The 3rd node in this list contains the value 3. The contents of this list are the values 1 through 6 in sequential order. The following questions are regarding the linked list after after the test_function is run. A. The head of the list after the test_function is run contains the value: B. The tail of the list after the test_function is run contains the value: C. The 3rd node in the list after the test_function is run…