static void Main(string[] args)
{
int[] array = new int[] { 5, 90, 0, 20, 57, 1, 90, 300 };
Heap <int> MaxHeap = new Heap <int>(array);
MaxHeap.InsertKey(300);
MaxHeap.Sort();
string str = MaxHeap.Display();
Console.WriteLine(str);
Console.ReadLine();
}
