Start with an empty queue and then do the following operations: 1. Create a variable called vand give it the value 4 2. Create a variable wand assign it the value v+ 5 and then perform the operation enqueue! [w] 3. Perform the operation enqueue! [✔] 4. Enqueue the number resulting from w+ vto the queue (enqueue![w+v]) 5. Apply the dequeue! operation What is the final value at the head of the queue returned when we apply the head oneration?

Start with an empty queue and then do the following operations: 1. Create a variable called vand give it the value 4 2. Create a variable wand assign it the value v+ 5 and then perform the operation enqueue! [w] 3. Perform the operation enqueue! [✔] 4. Enqueue the number resulting from w+ vto the queue (enqueue![w+v]) 5. Apply the dequeue! operation What is the final value at the head of the queue returned when we apply the head oneration?

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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Create a pseudocode for the Queue Operations. The pseudocode should accept N values, checks if the queue is full or empty and display messages indicating if the Queue is empty or full. It should also print the final contents.
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1 #Suppose you have a random list of people standing in a queue. # Each person is described by a pair of integers (h, k), #where h is the height of the person and k is the number of people # in front of this person who have a height greater than or equal to h. # Write an algorithm to reconstruct the queue. 2 3 4 5 6 7 8 9 # Note: # The number of people is less than 1,100. # Example 10 11 12 #Input: 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 # [[7,0], [4,4], [7,1], [5,0], [6,1], [5,2]] # Output: # [[5,0], [7,0], [5,2], [6,1], [4,4], [7,1]] def reconstruct_queue (people): type people: List[List[int]] :rtype: List[List[int]] www queue = [] people.sort(key=lambda x: (-x[0], x[1])) for h, k in people: queue.insert(k, [h, k]) return queue
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Task 1: Assume that you have a queue of float numbers; find the max value. Then multiply all queue elements by 2 and store the result in another queue
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Create a queue application with 1. an empty queue of integers 2. add numbers to the queue, 3. calculate and print the difference between the first and the last element. Example: Input : 2, 3, 4, 5, 6, 7, 8, 9 Output : 7 * Explanation: Last element is 9, first element is 2, the difference is 7
You can access any element on a queue. True False