Define depth and height of a tree?
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How would you dynamically allocate a one-dimensional and two-dimensional array of integers?
How do you search for a target key in a linked list?
What does arrays tostring do?
Compare Queue and Topic ?
Does linked list allow duplicates?
If you have to store one lakh objects, what will be a better option- a hash map or an array list?
Can arraylist be null?
What is a graph?
Why is arraylist used?
How can we delete the first node from the singly linked list?
Why we use linked list?
What is sorting an array?