Will hashmap allow null keys?
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How would you swap the Kth node from beginning with Kth node from end in a Linked List.
What are the advantages of sorting?
Why do we need to use computers to help us sort lists?
What is sorting explain?
Can a tree be empty?
Why do we use insertion sort?
What do you mean by complexity of search algorithm?
What is difference between stack and queue?
Explain set interface?
Define linked lists?
What is the bucket size, when the overlapping and collision occur at the same time?
What is stack and queue in data structure?