int getMaxWidth()
	{
		int maxWidth = 0;
		int width;
		int h = heightTree();
		int i;
		for (i = 1; i <= h; i++)
		{
			width = getWidth(root, i);
			if (width > maxWidth)
				maxWidth = width;

		}
		return maxWidth;
	}

	int getWidth(BNode* t, int level)
	{
		if(t!=nullptr)
		{
			if (root == nullptr)
			return 0;

			if (level == 1)
				return 1;
			else if (level > 1)
				return getWidth(t->left, level - 1) + getWidth(t->right, level - 1);
		}
		return 0;
	}