void AVL::breadFirstPrint(){
TQueue<Node*> q;
if(root_){
q.enqueue(root_);
while(!q.isEmpty()){
Node* curr=q.front();
q.dequeue();
if(curr->left_)
q.enqueue(curr->left_);
if(curr->right_)
q.enqueue(curr->right_);
cout << curr->data_ << endl;
}
}
}
void TwoThreeTree::levelOrder() {
if (root == NULL) return;
// Use a tree to do levelOrder Traversal
TQueue queue;
queue.push(root);
root->level = 0;
cout << "Level Order Traversal:\n";
int currentLevel = 0;
while (!queue.isEmpty()) {
const TNode *t = queue.top();
if (t->level != currentLevel) {
cout << endl;
currentLevel = t->level;
}
// push t's children on queue, set their level nubmer
t->print();
if (!t->isLeaf) {
int nextLevel = t->level + 1;
t->left->level = nextLevel;
queue.push(t->left);
t->middle->level = nextLevel;
queue.push(t->middle);
if (t->rlow != -1) {
t->right->level = nextLevel;
queue.push(t->right);
}
}
queue.pop();
}
cout << endl << endl;
}