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QA section

Specify three basic operations in the Stack data type!
What does LIFO refer to and with which data type (covered in this chapter) is it associated?
Give an example of stack implementation in real life
What is stack implementation in a programming language?
What is deque also known as?
What is the difference between queue and deque?
Why is the complexity of the data types O(1)? Can you guess why the number of elements in the data type doesn't affect the complexity?

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