1. Linked Lists, Stacks & Queues: a. What is the Big Oh for push and pop of one item from a stack and queue? Explain why. b. Which data structure supports LIFO? c. To reverse a string of characters would you use a stack or a queue? d. Recursion is a natural use for a _ (stack or queue)
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- What are Stack and Queues? Define them and write the pros and cons of Stack and Queue.Short answer: Answer the following in your own words: 1) Your friend says they implemented a stack as a linked list with reference pointers to both a head and the tail node (i.e. they implemented a stack as a double endedlinked list). They said this significantly improved the performance for all functions (push, pop, search, and update). Are they correct? Why or why not?This question involved the use of stack and queue (like u see below) Those are the class definitions for stacks and queues of integers (like u see below) Need the solution of the program step-by-step please!
- Explain thoroughly the answers to the following questions: When is it appropriate to implement stack or queue using singly linked list, and when is it appropriate to implement them using doubly linked list? A queue can be implemented using stack. Explain how.1a.Distinguish between Queues and Stacks. Give real life examples of the use of queues and stacks. 1b. Distinguish between singly-linked lists and doubly-linked lists. Give examples to illustrate your answer.Could you please explain the difference between stack and heap? Contains information on the stack pointer, frame pointer, and other related topics.
- write in c++ Given the class declaration (from a .h file) for a stack (or queue) implemented as a static array (or linked list), implement certain stack or queue functions (push, pop, enqueue, dequeue, isFull, isEmpty, constructor, destructor) any class just need an exampleI need this in C (not C++) There is a bag-like data structure, supporting two operations: 1 x1 x: Throw an element xx into the bag. 22: Take out an element from the bag. Given a sequence of operations with return values, you’re going to guess the data structure. It is a stack (Last-In, First-Out), a queue (First-In, First-Out), a priority-queue (Always take out larger elements first) or something else that you can hardly imagine! Input There are several test cases. Each test case begins with a line containing a single integer nn (1≤n≤10001≤n≤1000). Each of the next nn lines is either a type-1 command, or an integer 22 followed by an integer xx. This means that executing the type-2 command returned the element xx. The value of xx is always a positive integer not larger than 100100. The input is terminated by end-of-file (EOF). The size of input file does not exceed 1MB. Output For each test case, output one of the following: stackIt’s definitely a stack. queueIt’s definitely a queue.…ANSWER ASAP. C++ LANGUAGE ONLY. (NOT C, NOT JAVA, NOT C#) CPP ONLY Using the double-ended linked list C language syntax code below, convert it into C++ and use it as the base. Modify the provided program into the ff: create a new class named student_queue. and then.. Implement the following methods for the class: front() - returns the pointer to the front element of the queue back() - returns the pointer to the back element of the queue push() - allocates memory for a new node and connects it to the existing queue pop() - retrieves the oldest node in the queue, copies the data to a structure, and frees up the memory from the queue empty() - returns 1 or 0 depending on whether the queue is empty or not size() - returns the number of elements in the queue Program code: #include <stdio.h>#include <stdlib.h>typedef struct se_list_type {int num;struct se_list_type* prev;struct se_list_type* next;} se_list;int main() {// Start the listse_list* head = NULL;se_list* cur =…
- 1. Write a python program (in function) that implement a queue using stacks. Must have comments. 2. Write a python program (in function) that implement a stack using queue (must use push pop). Must have comments.1. Create a queue class using Python lists under the hood. Make sure built-in list methods are not accessible when using the new queue object so its properties are not violated4.3 Refer to the code fragment below and convert the following Queue structure into a Stack structure. You should create a reference called S1 for the stack structure. Code: Queue Q1 = new LinkedList (); Q1.add("Sandra"); Q1.add (15); Q1.add (200); Q1.add ('#'); Q1. remove (); System.out.println(Q1); System.out.println(Q1.peek()); Q1.add("Mary"); System.out.println(Q1);