void Menu::List(const BinarySearchTree<DataRecord>& d)
{
//prompt user to decide which data to list
cout << "h. for hash sequence\ns. for sorted sequence\n";
string input;
cin >> input;
if (input == "h")
//print hash
cout << "print hash";
else
//print sorted
d.inOrder(display);
cout << "inorder";
}
void inOrder(){cout << "\nIn-Order Traversal:\n"; empTree.inOrder(display);}
int main() {
BinarySearchTree<int, int> bst;
enum {QUIT, INSERT, SEARCH, INORDER, PREORDER, POSTORDER, SUCCESSOR, PREDECESSOR, DELETE, GETBYINDEX};
int option = -1;
int el;
while (option != QUIT) {
cout << "What you want to do now?"<<"\n";
cout <<"0. QUIT 1. INSERT 2.SEARCH 3. INORDER 4. PREORDER 5.POSRORDER 6.SUCCESSOR 7.PREDECESSOR 8.DELETE 9.GETBYINDEX\n";
cin >> option;
switch (option) {
case INSERT: // 1
{
int T;
cout << "Number of item to insert" << "\n";
cin >> T;
while (T-- > 0) {
cin >> el;
bst.insertNode(el, el);
}
break;
}
case SEARCH: // 2
{
cout << "Value you want to search?" << "\n";
cin >> el;
Node<int,int>* node = bst.searchNode(el);
cout << "Searched node is " << node->getValue() << "\n";
break;
}
case INORDER: // 3
cout << "Doing inorder traversal"<<"\n";
bst.inOrder();
cout << "\n";
break;
case PREORDER: // 4
cout << "Doing preorder traversal"<<"\n";
bst.preOrder();
cout << "\n";
break;
case POSTORDER: // 5
cout << "Doing postorder traversal"<<"\n";
bst.postOrder();
cout << "\n";
break;
case SUCCESSOR: // 6
{
cout << "Whose successor are you looking for?"<<"\n";
cin >> el;
Node<int,int>* node = bst.successor(el);
cout << "Successor to node " << el << " is " << node->getValue() << "\n";
break;
}
case PREDECESSOR: // 7
{
cout << "Whose predecessor are you looking for?"<<"\n";
cin >> el;
Node<int,int>* node = bst.predecessor(el);
cout << "Predecessor to node " << el << " is " << node->getValue() << "\n";
break;
}
case DELETE: // 8
cout << "Which element you want to delete?"<<"\n";
cin >> el;
bst.deleteNode(el);
break;
case GETBYINDEX: // 9
{
cout << "Enter Index of the item you are looking for?"<<"\n";
cin >> el;
Node<int,int>* node = bst.getNodeByIndex(el);
cout << "Item found is " <<node->getValue() << "\n";
break;
}
case QUIT: // 0
cout<<"GoodBye!";
return 0;
}
}
return 0;
}
