define un vector de colas

#include <bits/stdc++.h>
using namespace std;

// programa que define un vector de colas 

int main()
{
    // Define a queue
    queue<int> q;

    // Pushing elements in the queue:
    // enqueue() function is used to insert the elements
    q.push(10);
    q.push(20);
    q.push(30);

    // Displaying the elements of queue
    // Empty() function is used to check if the queue is empty or not
    while (!q.empty())
    {
        cout << q.front() << " ";
        q.pop();
    }
    return 0;
}