Which of the following operations requires O(n) time in a doubly linked list?
A. Accessing an element by index
B. Deleting a node at the end
C. Inserting a node at the beginning
D. Traversing the list
Answer: Option D
This Question Belongs to Data Structure >> Linked Lists In Data Structures
What is the time complexity of inserting an element at the beginning of a linked list?
A. O(1)
B. O(n)
C. O(log n)
D. O(n log n)
Which of the following is a disadvantage of linked lists compared to arrays?
A. Dynamic size
B. Random access
C. Ease of insertion and deletion
D. Memory overhead
What is a circular linked list?
A. A list where each node points to the next
B. A list where the last node points to the first node
C. A list where each node points to itself
D. A list where the nodes are in a circle
Which of the following is true about a doubly linked list?
A. Each node has one pointer
B. Each node has two pointers
C. It is a type of tree
D. It can be traversed in one direction only
Join The Discussion