The seven elements A, B, C, D, E, F and G are pushed onto a stack in reverse order, i.e., starting fromG. The stack is popped five times and each element is inserted into a queue. Two elements aredeleted from the queue and pushed back onto the stack. Now, one element is popped from thestack. The popped item isO AGBOF The function h() takes a pointer to the front of a non-empty singly linked list and a list position pos, 0posvoid h(node* & front, int pos){node*p front, *q;if (pos == 0){front front->next;delete p;}else{for (int i = 1; i < pos; i++)p = p->next;q = p->next;p->next = q->next;delete q; }}Assume the list contains the elements8-15-25 -> 33 -> 55 -> 99frontO8->15->25 -> 33 -> 55O8-15-25 -> 33 -> 99O8-15-33 -> 55 -> 99O8-15-25 -> 55 -> 99The time required to search an element in a linked list of length n isO O(n2)O O(n)OO (log n)OO (1)

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The seven elements A, B, C, D, E, F and G are pushed onto a stack in reverse order, i.e., starting from G. The stack is popped five times and each element is inserted into a queue. Two elements are deleted from the queue and pushed back onto the stack. Now, one element is popped from the stack. The popped item is O A G B F LL

The seven elements A, B, C, D, E, F and G are pushed onto a stack in reverse order, i.e., starting from G. The stack is popped five times and each element is inserted into a queue. Two elements are deleted from the queue and pushed back onto the stack. Now, one element is popped from the stack. The popped item is O A G B F LL

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

The seven elements A, B, C, D, E, F and G are pushed onto a stack in reverse order, i.e., starting from
G. The stack is popped five times and each element is inserted into a queue. Two elements are
deleted from the queue and pushed back onto the stack. Now, one element is popped from the
stack. The popped item is
O A
G
B
OF

The function h() takes a pointer to the front of a non-empty singly linked list and a list position pos, 0
pos<n, where n is the number of elements in the linked list. Display the elements in the list after a
call to h(front, 4).
template <typename T>
void h(node<T>* & front, int pos)
{
node<T>*p front, *q;
if (pos == 0)
{
front front->next;
delete p;
}
else
{
for (int i = 1; i < pos; i++)
p = p->next;
q = p->next;
p->next = q->next;
delete q; }
}
Assume the list contains the elements
8-15-25 -> 33 -> 55 -> 99
front
O8->15->25 -> 33 -> 55
O8-15-25 -> 33 -> 99
O8-15-33 -> 55 -> 99
O8-15-25 -> 55 -> 99
The time required to search an element in a linked list of length n is
O O(n2)
O O(n)
OO (log n)
OO (1)

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