Instantiating an STL priority_queue: a priority queue of integers, doubles, and integers sorted using std::greater <> : priority_queue « queue stack « C++ Tutorial

1. C++ Tutorial
2. queue stack
3. priority_queue

#include <queue>

int main ()
{
    using namespace std;

    // A priority queue of integers sorted using std::less <> (default)
    priority_queue <int> pqIntegers;

    // A priority queue of doubles
    priority_queue <double> pqDoubles;

    // A priority queue of integers sorted using std::greater <>
    priority_queue <int, deque <int>, greater <int> > pqIntegers_Inverse;

    return 0;
}