Arkango

template < typename F>
void visitaPerLivelli(BinaryTree<F>* t){

  codePointer<F> C;
  C.incoda(t->key());
  while(!C.codavuota()){
    F nodo = C.leggicoda();
    C.fuoricoda();
    BinaryTree<F>*  nodoAlbero = t->lookupNode(nodo);
    cout << nodoAlbero->key() << "\n";