how to find the number of possible tree in the given tree.
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2^n-n
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What is garbage collection in data structure?
Why is it called bubble sort?
What is peek in stack?
What is a Breadth First Search? Give a few of its applications.
Differentiate between hashmap and hashtable.
How do you find the number of comparisons in bubble sort?
What are the standard ways in which a graph can be traversed?
What is difference between hashmap and arraylist?
Name the areas in which you can apply data structures extensively?
What is heap tree in data structure?
Which is the fastest sorting?
Are duplicates allowed in hashmap?
What is list and its types?
Which is better hashset or treeset?
What are the basic data structures?
