Why null is allowed in hashmap?
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What are the applications of b-tree?
On clicking a node in a tree, all the adjacent edges are turned on. Calculate min of clicks such that all the edges are turned on.
There is a program which inserts and deletes node in a sorted singly linked list. There is a bug in one of the modules, how would you debug it?
What type of memory allocation is referred for Linked lists?
Why is data structure?
What are the data structures used in RDBMS, Network data model & Hierarchical data model?
How would you check if a binary tree is BST or not ? Write a program.
What are the properties of an algorithm?
Which sorting algorithm is worst?
What is meant by linked list?
What is unbounded queue?
Describe the complexity of Binary search