static private void sortHeap(ref PriorityQueue.Heap<Vertex> heap)
{
PriorityQueue.Element<Vertex>[] updatedKeys = new PriorityQueue.Element<Vertex>[heap.NumberOfElements];
for (int i = 0; i < updatedKeys.Length; i++)
{
updatedKeys[i] = updateKey(heap.deleteMax());
}
for (int i = 0; i < updatedKeys.Length; i++)
{
heap.insertElement(updatedKeys[i]);
}
}