What is a height of a tree?
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What is the difference between a Stack and a Queue.
Are the expressions arr and &arr same for an array of integers?
Can we change the size of an array at run time?
What is mean by selection sort?
What do you mean by open addressing?
How many sorting algorithms are there?
What do you mean by general trees?
Can we add duplicate keys in a hashmap?
What are the difference between arraylist and linkedlist from the perspective of sorting?
Differentiate between an array and an arraylist.
How does a hashmap work?
Why do we use arrays?