Is duplicate allowed in hashmap?
What is the difference between null and void pointer in data structures?
Is array a dynamic data structure?
Define threaded binary tree.
How to reference all the elements in a one-dimension array?
Define linked list data structure.
What is the use of tree data structure?
Why merge sort is better than insertion sort?
What is the difference between linked list and array?
How do I start preparing for placement?
Write a program to reverse a link list.
What is the best case time complexity of bubble sort?
Why is sorting necessary?