Does concat mutate array?
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What are the difference between a stack and a queue?
Why do we need linked list?
Explain how to find 3rd element from end in a linked list in one pass?
What is the two-dimensional array?
What is sequential search? What is the average number of comparisons in a sequential search?
Will arraylist maintain insertion order?
What is default array size?
A list is ordered from smaller to largest when a sort is called. Which sort would take the longest time to execute?
Describe full binary tree and complete binary tree.
What are the classification of data structures?
Why hashmap is faster than hashset?
How does a selection sort work for an array?