Node* popHeap(Node** heap, int* heap_size)
{
	Node* pop = NULL;
	if (heap[0]->next == NULL)
	{
		pop = heap[0];
		(*heap_size)--;
		heap[0] = heap[*heap_size];
		Heapify(heap, *heap_size, 0);
		OP += 3;
	}
	else
	{
		pop = heap[0];
		heap[0] = heap[0]->next;
		Heapify(heap, *heap_size, 0);
		OP += 2;
	}
	OP++;
	return pop;
}