What is binary tree and its types?
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Is quicksort faster than merge sort?
Which is better merge or quick sort?
Give a good data structure for having n queues ( n not fixed) in a finite memory segment. You can have some data-structure separate for each queue. Try to use at least 90% of the memory space.
Can we add duplicate keys in a hashmap?
Which interfaces are implemented by linkedhashset?
what is AVL tree?
A list is ordered from smaller to largest when a sort is called. Which sort would take the longest time to execute?
What is the difference between hashset and hashtable?
Differentiate between priorityqueue and treeset.
How to reverse a singly linked list?
What is the difference between arraylist and linkedlist?
What is a circular singly linked list?