What do you mean by 2-3-4 tree?
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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.
What is array define its types?
Will this code give error if I try to add two heterogeneous elements in the arraylist? And why?
How many times is merge sort called?
Is quicksort a stable sorting algorithm?
What is a spanning tree in data structure?
Define linked lists?
Explain the difference between hashset and hashmap?
How to check array contains value or not?
Explain how to find 3rd element from end in a linked list in one pass?
Do sets allow duplicates?
Describe binary tree and its property.