Why is arraylist used?
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What is best time complexity?
What is application of data structure?
Explain binary representation?
What happens if we try to insert duplicate key in hashmap?
Define binary tree insertion.
What is the difference between linked list and array?
Define dynamic data structures?
What is ordered map?
How will you reverse Linked List.
Is quicksort recursive?
Mention the steps to insert data at the starting of a singly linked list?
What sorting algorithm should be used for sorting strings?