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  1. Practice
  2. Data Structures
  3. Trees
  4. Tree : Top View
  5. Discussions

Tree : Top View

  • sheksbear + 2 comments

    Corresponding Java Solution, Thanks it was easy to understand :).

    static int count=0;

    void top_view(Node root){

    if(root.left!=null && count>=0){
    count++;
    top_view(root.left);
}

System.out.print(root.data+ " ");
count--;

if(root.right!=null && count<0){
    count--;
    top_view(root.right);

}

    }

    • angela_pan1992 + 0 comments

      no need for the "count--" in the second if statement.

    • vkrrocky + 0 comments

      wrong code .... its depand on test case...whatever u r getting its fault of hackerrank test case... to verify my argument use this as test case.. 7 2 1 8 7 9 6 5 //level order bst

      u will get output as "1 2 8 9" which is wrong..