Queues Presentation
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| Introduction to Queues | ||
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| A queue is a data structure that follows the first-in, first-out (FIFO) principle. Queues are used to manage and process data in a sequential order. Elements are added to the back of the queue and removed from the front. | Image Source  | |
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| Main Operations | ||
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| Enqueue: Adding an element to the back of the queue. Dequeue: Removing the element from the front of the queue. Peek: Viewing the element at the front without removing it. | Image Source  | |
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| Real-life Examples | ||
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| Waiting in line at a grocery store checkout. Handling print jobs in a printer. Processing messages in a messaging app. | Image Source  | |
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| Implementation of Queues | ||
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| Queues can be implemented using arrays or linked lists. Arrays provide constant-time access to elements. Linked lists allow dynamic resizing and efficient insertion/ removal. | Image Source  | |
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| Types of Queues | ||
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| Linear Queue: A simple queue with a fixed size. Circular Queue: A queue that wraps around to the beginning when reaching the end. Priority Queue: Assigns a priority value to each element and processes them accordingly. | Image Source  | |
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| Time Complexity | ||
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| Enqueue operation: O(1) - Constant time complexity. Dequeue operation: O(1) - Constant time complexity. Peek operation: O(1) - Constant time complexity. | Image Source | |
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| Use Cases | ||
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| Task scheduling in operating systems. Multi-threaded programming. CPU scheduling algorithms. | Image Source  | |
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| Advantages of Queues | ||
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| Ensures fairness by following the FIFO principle. Efficient for managing data in a sequential order. Can be easily implemented and understood. | Image Source  | |
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| Limitations of Queues | ||
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| Fixed size queues have limited capacity. Linear queues can cause memory wastage. Priority queues can be complex to implement. | Image Source  | |
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| Summary | ||
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| Queues are a fundamental data structure with various real-life applications. They follow the FIFO principle and are efficient for managing data in a sequential order. Queues can be implemented using arrays or linked lists, and different types of queues exist for specific use cases. | Image Source  | |
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