void medis::del()
{
	node1* t = new node1;
	string pav;
	cout << "Iveskite prekes pav kuria norite istrinti" << endl;
	cin >> pav;
	t = get(pav);
	node1 *m = first;
	while (m)
	{
		if (m->right == NULL &&  m->left == NULL)
		{
			//cout << "rastas lapas" << endl;
			t = m;
			first = t;
			delete m;
			break;
		}

		else
		{	
			if (m->right != NULL)
					m = m->right;
			else
					m = m->left;
		}
	}
	
}