What is sequential search? What is the average number of comparisons in a sequential search?
What is the difference between 1d and 2d array?
What does arraylist remove do?
Provide an algorithm to reverse a linked list without using recursion.
Why do we need linked list?
What sorting algorithm does arrays sort use?
What happens if we try to insert duplicate key in hashmap?
What is data structure and why we need them?
What are the applications of linked list?
How would you reverse characters of an array without using indexing in the array.
What is the use of hashtable?
What are skew trees? For a tree with 4 nodes draw all possible binary? Generalize for n nodes how many binary trees can be drawn?
What is the difference between set and unordered_set?