void najmanji(node *root)
{
	if(!root) return;
	node *current;
	for(current = root; current->left; current = current->left);
	cout << "Najmanji element u stablu je   "<< current->value << endl;
}



int suma(node *root)
{
    if (root == NULL)
        return 0;
    return (root->value + suma(root->left) + suma(root->right));
}