A priority_queue with the Smallest Value at the Front Using a Predicate : priority_queue « queue stack « C++ Tutorial

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C++ Tutorial » queue stack » priority_queue 
21.3.10.A priority_queue with the Smallest Value at the Front Using a Predicate
#include <queue>
#include <iostream>

int main ()
{
    using namespace std;

    priority_queue <int, vector <int>, greater <int> > pqIntegers;

    pqIntegers.push (10);
    pqIntegers.push (5);
    pqIntegers.push (-1);
    pqIntegers.push (20);

    cout << "The queue contains " << pqIntegers.size () << " elements";
    cout << endl;
    cout << "Element at the top: " << pqIntegers.top () << endl << endl;

    while (!pqIntegers.empty ())
    {
        cout << "pop the topmost element " << pqIntegers.top ();

        pqIntegers.pop ();
    }

    return 0;
}
21.3.priority_queue
21.3.1.A priority_queue for integers
21.3.2.priority_queue of double
21.3.3.priority_queue: push, pop, top, empty
21.3.4.priority_queue: push and size
21.3.5.priority_queue: pop
21.3.6.Get top() from priority_queue
21.3.7.priority_queue of int: top, pop, empty()
21.3.8.Instantiating an STL priority_queue: a priority queue of integers, doubles, and integers sorted using std::greater <>
21.3.9.priority_queue of int, vector of int and greater
21.3.10.A priority_queue with the Smallest Value at the Front Using a Predicate
21.3.11.priority_queue: top
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