How do I insert and erase elements efficiently with std::queue?

The `std::queue` in C++ is a container adapter that provides a FIFO (First In, First Out) data structure. It allows for efficient insertion and deletion of elements at the front and back of the queue. This document explains how to insert and erase elements efficiently using `std::queue`.

To insert elements into a queue, you use the `push()` method, which adds elements to the back of the queue. To remove elements, you utilize the `pop()` method, which removes elements from the front of the queue. This structure ensures that elements are processed in the order they were added.

Here’s a simple example demonstrating how to use `std::queue`:


        #include <iostream>
        #include <queue>

        int main() {
            std::queue myQueue;

            // Insert elements
            myQueue.push(1);
            myQueue.push(2);
            myQueue.push(3);

            std::cout << "Front element: " << myQueue.front() << std::endl; // Should print 1
            
            // Erase elements
            myQueue.pop();
            std::cout << "After popping, front element: " << myQueue.front() << std::endl; // Should print 2
            
            return 0;
        }

C++ std::queue insertion deletion FIFO container adapter data structures

How do I insert and erase elements efficiently with std::queue?

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How do I insert and erase elements efficiently with std::queue?

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