/// <summary>
/// 移除最大的元素
/// </summary>
/// <returns></returns>
public E Remove()
{
E e = _array.Get(0);
_array.Swap(0, Size - 1);
_array.RemoveLast();
SiftDown(0);
return(e);
}
/// <summary>
/// 出栈 O(1)
/// </summary>
/// <returns></returns>
public E Pop()
{
return(_stack.RemoveLast());
}