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Which is better hashmap or arraylist?
What is sort function?
Explain what are the major data structures used in the hierarchical data model?
Is an arraylist a vector?
Questions related to arrays, such as given a 2 integer array, find the common elements.
You are given a singly linked list. How would you find out if it contains a loop or not without using temporary space?
Can a hashmap have duplicate keys?
Why is waste sorting important?
What is the difference between push and pop?
What is a Breadth First Search? Give a few of its applications.
How do you determine if a binary tree is height balanced?
What is meant by linked list?
Describe the complexity of Quick Sort
What is collection process?
What are the average and worst time complexity in a sorted binary tree is
