Grokking Algorithm Complexity and Big-O
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Stack and Queue
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Stacks and Queues are fundamental data structures that allow insertion and deletion of elements in a specific order. A Stack follows a Last In, First Out (LIFO) order, where the last element added is the first to be removed. A Queue follows a First In, First Out (FIFO) order, where the first element added is the first to be removed.

Key Characteristics of Stack and Queue

Stack

  • LIFO: Last element added is the first to be removed.
    • Common operations: push (add) and pop (remove).

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