QUESTION 7 Which one of the following is the correct way to increment the back end in a queue? O a. back = back+1 O b.back = (back+1) % maxsize O c. back = (back % maxsize) + 1 O d. None of the above QUESTION 8 In a queue implementation using array of size 5, the array index starts with 0 where head and tail values are 3 and 4 respectively. Determine array index at which the insertion of the next element will take place. O 5 O 2

QUESTION 7 Which one of the following is the correct way to increment the back end in a queue? O a. back = back+1 O b.back = (back+1) % maxsize O c. back = (back % maxsize) + 1 O d. None of the above QUESTION 8 In a queue implementation using array of size 5, the array index starts with 0 where head and tail values are 3 and 4 respectively. Determine array index at which the insertion of the next element will take place. O 5 O 2

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Source Booksh... m HBO Max AAP CS A Java Cours... Assume you have a stack, called myStack, implemented with single-linked nodes, that looks like this: 573 -> 408 -> 142 -> 886 'top' is a reference variable that points to the node containing 573, and 'count' is an internal int that holds the count of nodes (currently 4). The following code is ran: Integer firstPop = myStack.pop(); Integer secondPop = myStack.pop(); myStack.push(firstPop); myStack.push(760); myStack.push(secondPop); myStack.push(738); Select all of the following that are true at the end of this code. The variable secondPop refers to 142. O The element 760 is contained by the third node in this stack (where 'top' is considered the first node). O The count is currently equal to 6. The variable first Pop refers to 573. O The Integer held by firstPop is now the element contained by the node referenced through the top pointer. 886 is the only Integer that didn't change position in the LinkedStack. O The Integer held by second…
Java adt Draw the contents of the queue after the following statements execute. Clearly label the front and back of the queue. QueueInterface bankLine = new LinkedQueue<>(); bankLine .enqueue("John"); bankLine .enqueue("Matthew"); String next = bankLine .dequeue(); next = bankLine .dequeue(); bankLine .enqueue("Drew"); bankLine .enqueue("Heather"); next = bankLine .dequeue(); bankLine .enqueue("David"); next = bankLine .dequeue();
* QueueArrayList.java This file implements QueueInterface.java This file has * only one ArrayList<T> type of attribute to hold queue elements. One default * constructor initializes the ArrayList<T> queue. An enqueue method receives an * object and place the object into the queue. The enqueue method does not throw * overflow exception. A dequeue method returns and removes an object from queue * front. The dequeue method will throw exception with message "Underflow" when * the queue is empty. A size method returns number of elements in the queue. A * toString method returns a String showing size and all elements in the queue. Please help me in java
def__init__(self): """ ------------------------------------------------------- Initializes an empty Queue. Data is stored in a Python list. Use: source = Queue() ------------------------------------------------------- Returns‌‌‌‌‌‌‌‌‌‌‌‌: a new Queue object (Queue) ------------------------------------------------------- """ self._values = [] defis_empty(self): """ ------------------------------------------------------- Determines if source is empty. Use: b = source.is_empty() ------------------------------------------------------- Returns‌‌‌‌‌‌‌‌‌‌‌‌: True if source is empty, False otherwise. ------------------------------------------------------- """ return len(self._values) == 0 def__len__(self): """ ------------------------------------------------------- Returns the length of source. Use: n = len(source) ------------------------------------------------------- Returns‌‌‌‌‌‌‌‌‌‌‌‌: the number of values in source (int >= 0)…
Find the output of the following program code if the following values have been inserted into abcQ: 1 2 4 5
Which of the following statements is true about a Queue? Recall that a queue is a restricted list. Select one: O It adds elements to the back and removes elements from the front of the list. O It adds elements to the front and removes elements from the front of the list. O It adds elements to the back and removes elements from the back of the list. O It adds elements to the front and removes elements from the back of the list. O It removes elements based its priority. O None of these options
Write a Java program for Array Implementation of Queue. Output:run:Enter the size of queue5Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:1Enter a value to be pushed:6Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:1Enter a value to be pushed:6Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:3The elements in queue66Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:1Enter a value to be pushed:8Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:3The elements in queue668Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the Choice:1Enter a value to be pushed:2Queue OPERATIONS USING ARRAY-----------------------------1.Enqueue2.Dequeue3.DISPLAY4.EXITEnter the…
PLEASE USE C/C++.DONOT USE PYTHON Using linked lists implement an amusement park reservation system. The system allows a person to make a reservation for a specific date. A person can change the reservation date or even cancel his booking anytime. The system puts all reservations in a queue. The park will allow only certain number of persons on any given day in order the reservation was made. For each day the system will print out persons allowed to visit the park. For sake of simplicity, dates are being confined to 15th to 30th. The system should ask the user to enter code for different operations. It reads all data from the datafile amusement.dat. The first integer on datafile indicates limit of persons allowed on any day. code 1: make reservation, system expects date followed by name (within 20 characters) and makes reservation. If number of bookings exceeds allowed number, then system prints SORRY, QUOTA OVER and moves over to read next code. code 2: change date of…
id:202010501
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data МАТH data ENGL null next next top top data MATH next null The above is a stack of textbooks. The top is a node to record the address of the top element of a stack. 2. Which of the following statement push the ENGL textbook to the top? top.next = new Node("ENGL", top); a. b. top = new Node("ENGL", top) Describe the reason of your choice. Your answer is (a or b) Will the push action take time in 0(1) or 0(n)? Next Page O Type here to search
stacks and queues. program must be able to handle all test cases without causing an exception Note that this problem does not require recursion to solve (though you can use that if you wish).