7. You could create a circular list from a single-linked list by executing the statement.а.tail.next = headb. head. prev = nextc. tail. headnextd. head.tail = prev8. How much time does an ArrayList add a new element tothe beginning of the list if n is the size of theArrayList?а. О(1)b. 0(n)c. O(n²)d. 0(log n)9. How much time does an ArrayList add a new element tothe end of the list if n is the size of the ArrayList?a. 0(1)b. 0(n)c. O(n2)d. 0(log n)

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7. You could create a circular list from a single- linked list by executing the statement. a. tail. next = head b. head.prev = next c. tail.head = next d. head.tail = prev

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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Concept explainers

Operations of Linked List

A linked lists are one of the most widely used and effective data structures, with applications in every programming language, including C, C++, Python, Java, and C#.

Question

7. You could create a circular list from a single-
linked list by executing the statement.
а.
tail.next = head
b. head. prev = next
c. tail. head
next
d. head.tail = prev
8. How much time does an ArrayList add a new element to
the beginning of the list if n is the size of the
ArrayList?
а. О(1)
b. 0(n)
c. O(n²)
d. 0(log n)
9. How much time does an ArrayList add a new element to
the end of the list if n is the size of the ArrayList?
a. 0(1)
b. 0(n)
c. O(n2)
d. 0(log n)

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