Why is my code showing compilation error?

#1

Code to implement a BFS Traversal

#2 
node* BuildTree()
{
    int d; cin>>d;
    if(d == -1 ) return NULL;   // u forgot to add this line here
    node* root= new node(d); // constructor call

    root->left=BuildTree();
    root->right=BuildTree();
    return root; // remember to return root '_'
}
1 Like
#3

Thanks so much :grin: