What is binary search tree and explain its time complexity?
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Why is hashmap faster than arraylist?
what is atmost complete binary tree?
What is the need of sorting?
What is difference between array and arraylist? When will you use array over arraylist?
Why do we need to recycle?
Sorting is not possible by using which of the following methods? (a) Insertion (b) Selection (c) Exchange (d) Deletion
Why is data structure?
What is the idea behind splaying?
What is collection process?
What is the function of stack?
Explain binary tree traversals?
Tell me about circular linked list?