What is meant by binary tree?
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Explain what is the data structures used to perform recursion?
Which is better bubble sort or selection sort?
Which searching algorithm is best?
How is a queue works?
What is difference between list and set?
What is a subtree?
Explain Queue
What is the difference between Array and Array List ? Explain in brief with example.
How can we delete the first node from the singly linked list?
Define linked lists?
What is difference between stack and queue?
Why is hashmap faster than arraylist?