Grokking Data Structures & Algorithms for Coding Interviews
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Queue Implementation in Different Languages
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Queues are a fundamental data structure used in various programming languages, often with built-in support for easy and efficient usage. Most modern languages provide predefined queue implementations, which handle insertion (enqueue) and removal (dequeue) operations efficiently.

The table below summarizes the queue implementations in different programming languages:

LanguageAPI
Javajava.util.Queue
Pythonqueue.Queue
C++std::queue
JavaScriptImplemented through Array
C#System.Collections.Generic.Queue
GoImplemented through slices

Now, let’s look at the queue implementation in all six languages using their built-in APIs.

Python3
Python3
. . . .

Key Takeaways

✔ Java, Python, C++, and C# have dedicated queue classes.
✔ JavaScript and Go use arrays/slices to simulate queue behavior.
✔ The basic queue operations (enqueue, dequeue, peek, isEmpty) remain the same across all languages.

Using built-in queue implementations ensures optimized performance and makes code more readable and maintainable.

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