What are the applications of queues in C++?

What are the applications of queues in C++?

Queues in C++ are used in various applications like scheduling tasks, managing resources, and handling asynchronous data.

Can you give me an example of a queue implementation in C++?

Sure! Here's a simple implementation using the STL queue:

#include <iostream>
#include <queue>

int main() {
    std::queue<int> q;
    q.push(1);
    q.push(2);
    q.push(3);
    while (!q.empty()) {
        std::cout << q.front() << ' ';
        q.pop();
    }
    return 0;
}

What are the advantages of using queues over stacks?

Queues follow FIFO (First In, First Out) which is ideal for scenarios like task scheduling, while stacks follow LIFO (Last In, First Out) which is better for backtracking.

Are there any real-world examples where queues are essential?

Yes, queues are essential in scenarios like print job management, customer service lines, and CPU task scheduling.