What are hash tables good for?
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Which sorting is used in collections sort?
How does arraylist store data?
Can a stack be described as a pointer? Explain.
What is dequeue operation?
Explain singly linked list in short.
What is the time complexity of arraylist and linked list?
Can sets contain duplicates?
Mention some drawbacks of the linked list.
Which is better stack or queue?
What is difference between list and array list?
What are the complexity of binary search?
Why you need a data structure?