What is a minimum spanning tree?
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How null key is handled in hashmap?
Is arraylist fail fast?
What are the difference between malloc() and calloc()?
Why do we need arrays if all the operations that are performed on arrays can be performed on arraylist?
What is dequeue operation?
an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].
Which is faster arraylist or hashmap?
Is array a dynamic data structure?
Explain linked list in short.
Write a Program for Linked list manipulation.
How does bogo sort work?
What is the meaning of arraylist?