What is data structure and why we need them?
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What is difference between rb tree and avl tree?
List out the disadvantages of using a linked list?
How do you separate zeros from non-zeros in an array?
Why is quicksort faster than merge sort?
How does a hashtable work?
Is binary tree a bst?
What is the difference between Array and Arraylist?
Does linkedhashset allow duplicates?
What is doubly linked list?
State the difference between primitive and non-primitive data types?
What is the need of sorting?
How does max heap work?