What is heap with example?
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Which sorting algorithm is used in arrays sort?
Can we put null value in hashmap?
what is a balanced tree.
What are the different binary tree traversal techniques?
Which type of efficient data structure is used in the internal storage representation in RDBMS?
Define terminal nodes in a tree?
How does a binary search work?
Describe the merge sort principle and what will be its time complexity?
What is a matrix? Explain its uses with an example
Does treeset allow null?
What is difference between hashset and treeset?
Is pointer a variable?