What is the minimum number of queues that can be used to implement a priority queue?
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How many null values are allowed in hashmap?
How to check array contains value or not?
Define the tree data structure.
What is array traversing?
Explain Linked List
What is meant by a dynamic array?
How do you sort an array in descending order?
Why do we need to use computers to help us sort lists?
an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like. [ I ended up giving about 4 or 5 different solutions for this, each supposedly better than the others ].
Why do we study data structures?
How many types of data structures are used?
How to search binary in a sorted array?