Given queue of integers and an integer k, write a program to remove the first k elements of the queue, reverse their order and append them at the end of the queue, leaving the other elements in the same relative order. Only a stack can be used as an auxiliary space and the following standard operations are allowed on queue. • enqueue(x) : Add an item x to rear of queue • dequeue(): Remove an item from front of queue Examples: Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k =5 Output: Q = 60, 70, 80, 90, 100, 50, 40, 30, 20, 10 Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k =2 Output: Q = 30, 40, 50, 60, 70, 80, 90, 100, 20, 10

Given queue of integers and an integer k, write a program to remove the first k elements of the queue, reverse their order and append them at the end of the queue, leaving the other elements in the same relative order. Only a stack can be used as an auxiliary space and the following standard operations are allowed on queue. • enqueue(x) : Add an item x to rear of queue • dequeue(): Remove an item from front of queue Examples: Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k =5 Output: Q = 60, 70, 80, 90, 100, 50, 40, 30, 20, 10 Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k =2 Output: Q = 30, 40, 50, 60, 70, 80, 90, 100, 20, 10

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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Question

Given queue of integers and an integer k, write a program to remove the first k elements of the queue,
reverse their order and append them at the end of the queue, leaving the other elements in the same relative
order. Only a stack can be used as an auxiliary space and the following standard operations are allowed on
queue.
• enqueue(x) : Add an item x to rear of queue
dequeue(): Remove an item from front of queue Examples:
Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k =5
Output: Q = 60, 70, 80, 90, 100, 50, 40, 30, 20, 10
Input: Q = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, k-2
Output: Q = 30, 40, 50, 60, 70, 80, 90, 100, 20, 10

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