for (i=0; i<val; i++)
	{
		ris=albero_visit(albero, POSTORDER);
		x=idnt;
		while (x!=NULL) 
		{
			printf("%c=%2.1f ", x->ident, x->valori[x->n_curr]);
			if ((x->n_curr++)==(x->n_valori-1))
				x->n_curr=0;
			x=x->next;
		}
		printf(", valore risultante=%2.2f\n", ris);
		printf("%s", buf);
	}