Differentiate between singly and doubly linked lists?
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How to create an Array?
Which sort is stable?
What is binary tree? Explain its uses.
What is a weighted graph?
How many null values are allowed in hashmap?
How many types of sorting algorithms are there?
What is a linear search?
Can sets contain duplicates?
How can we remove loops in a linked list? What are the functions of fast and slow pointers?
For searches. Which one is most preferred: array list or linked list?
Explain the uses of matrix with an example?
Why is hashmap not thread safe?