What is a comparator function?
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List out the advantages of using a linked list?
What is the space complexity of quicksort?
You want to insert a new item in a binary search tree. How would you do it?
Is pointer a variable in data structure?
Is hashmap a data structure?
Which of the collections allows null as the key?
Which is faster arraylist or linked list?
which is the simplest file structure? (Sequential, indexed, random)
What is a Queue? Explain its operation with example?
How do you find the height of a binary tree?
What is difference between set and map?
Explain the Linked List