void delete_node(string node, City *Head, int *op_count){
City *Traverse;
Traverse = Head;
op_count++;
op_count++;
// search for Denver in Linked List
while(Traverse->getPlace() != node and Traverse->getNext() != NULL){
Traverse = Traverse->getNext();
op_count++;
}
// Delete node Denver in LinkedList
if(Traverse->getPlace() == node){
Traverse->getPrev()->setNext(Traverse->getNext());
Traverse->getNext()->setPrev(Traverse->getPrev());
delete Traverse;
op_count++;
op_count++;
op_count++;
}
op_count++;
// Print Cities to show deletion of Denver
Traverse = Head;
while(Traverse->getNext() != NULL){
Traverse = Traverse->getNext();
cout << Traverse->getPlace() << endl;
op_count++;
op_count++;
}
cout << endl;
}
void add_node(City *Head, int *op_count){
string new_city, prev_city;
cout << "Input the new city to add to network as well as the city that should precede it seperated by a space." << endl;
cin >> new_city;
cin >> prev_city;
cout << endl;
City *Traverse;
Traverse = Head;
op_count++;
op_count++;
while(Traverse->getPlace() != prev_city and Traverse->getNext() != NULL){
Traverse = Traverse->getNext();
op_count++;
}
// add the new city to the grid
if(Traverse->getPlace() == prev_city){
City *NewCity = new City("NULL","NULL");
if(prev_city == "Boston"){
NewCity->setPlace(new_city);
NewCity->setPrev(Traverse->getPrev()->getNext());
Traverse->setNext(NewCity);
op_count++;
op_count++;
op_count++;
}else{
NewCity->setPlace(new_city);
NewCity->setNext(Traverse->getNext());
NewCity->setPrev(Traverse->getNext()->getPrev());
Traverse->getNext()->setPrev(NewCity);
Traverse->setNext(NewCity);
op_count++;
op_count++;
op_count++;
op_count++;
op_count++;
}
op_count++;
}
op_count++;
// Print Cities to show Addition of New City
Traverse = Head;
while(Traverse->getNext() != NULL){
Traverse = Traverse->getNext();
cout << Traverse->getPlace() << endl;
//cout << Traverse->getNext() << endl;
op_count++;
op_count++;
}
cout << endl;;
}