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  1. Tree: Preorder Traversal
  2. Discussions

Tree: Preorder Traversal

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82 Discussions

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  • hackerrank4197
     + 0 comments

    Why is this considered an advanced level challenge?

    I'm not even sure what the challenge was supposed to be. It felt more like a introduction to trees tutorial question.

  • jadismael
     + 0 comments

    Why is the php so messed up? why doesn't it make sense compared to python and js ?

  • anarod_val25
     + 0 comments
    void preOrder(Node *root) {

            if (root == nullptr){
            return;
    }

    std::cout << root->data << " ";
    preOrder(root->left);
    preOrder(root->right);}

}

  • troygu
     + 0 comments

    Why is the C++ 14 solution template formulated in such a weird way that you cannot include additional libraries (such as stack for this question)? The C++ 11 and 20 templates are totally fine. I wish the solution templates are all standardized like Leetcode does.

  • wasifk308
     + 0 comments
    if(root == nullptr)
          return;
           
int data = root->data;
cout<<data <<  " ";
preOrder(root->left);
preOrder(root->right);