int main() {
Op* op3 = new Op(3);
Op* op4 = new Op(4);
Op* op2 = new Op(2);
Add* add1 = new Add(op3, op4);
Sqr* sqr1 = new Sqr(op2);
Sub* sub1 = new Sub(add1, sqr1);
Root* root1 = new Root(sub1);
Op* op5 = new Op(5);
Op* op6 = new Op(6);
Op* op7 = new Op(7);
Op* op8 = new Op(8);
Mult* mul1 = new Mult(op5, op6);
Sub* sub2 = new Sub(op7, op8);
Sqr* sqr2 = new Sqr(mul1);
Add* add2 = new Add(sqr2, sub2);
Root* root2 = new Root(add2);
Op* op0 = new Op(0);
Op* op11 = new Op(11);
Op* op13 = new Op(13);
Op* op81 = new Op(81);
Sub* sub3 = new Sub(op7, op13);
Sqr* sqr3 = new Sqr(op11);
Sub* sub4 = new Sub(op81, op0);
Mult* mul2 = new Mult(sub4, sqr3);
Sqr* sqr4 = new Sqr(sub3);
Add* add3 = new Add(mul2, sqr4);
Root* root3 = new Root(add3);
Op* op1 = new Op(1);
Mult* mul3 = new Mult(op0, op1);
Sub* sub5 = new Sub(op1, mul3);
Sqr* sqr5 = new Sqr(sub5);
Root* root4 = new Root(sqr5);
std::string s;
Visitor* v = new PrintVisitor();
cout << "--- PreOrder Iteration Test 1---" << endl;
PreOrderIterator* pre_itr = new PreOrderIterator(root1);
for(pre_itr->first(); !pre_itr->is_done(); pre_itr->next()) {
pre_itr->current()->print();
cout << endl;
pre_itr->current()->accept(v);
}
cout << endl;
cout<<"=== Visitor Representation 1===" << endl;
v->execute();
getline(cin, s);
v = new PrintVisitor();
cout << "--- PreOrder Iteration Test 2---" << endl;
pre_itr = new PreOrderIterator(root2);
for(pre_itr->first(); !pre_itr->is_done(); pre_itr->next()) {
pre_itr->current()->print();
cout << endl;
pre_itr->current()->accept(v);
}
cout << endl;
cout<<"=== Visitor Representation 2===" << endl;
v->execute();
getline(cin, s);
v = new PrintVisitor();
cout << "--- PreOrder Iteration Test 3---" << endl;
pre_itr = new PreOrderIterator(root3);
for(pre_itr->first(); !pre_itr->is_done(); pre_itr->next()) {
pre_itr->current()->print();
cout << endl;
pre_itr->current()->accept(v);
}
cout << endl;
cout<<"=== Visitor Representation 3===" << endl;
v->execute();
getline(cin, s);
v = new PrintVisitor();
cout << "--- PreOrder Iteration Test 4---" << endl;
pre_itr = new PreOrderIterator(root4);
for(pre_itr->first(); !pre_itr->is_done(); pre_itr->next()) {
pre_itr->current()->print();
cout << endl;
pre_itr->current()->accept(v);
}
cout<<"=== Visitor Representation 4===" << endl;
v->execute();
};
