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

Tree : Top View

  • t3rohaha
     + 0 comments

    Hello everyone!

    I've struggles with solving this problem.

    1) I can't understand the input provided, I assume it's a node with data, left and right properties.

    2) And this is my javascript solution which prints nothing:

    function processData(input) {

    function printTopView(root) {
        const result = [];

        if (root.left) goLeft(root.left);

        result.push(root.data);

        if (root.right) goRight(root.right);

        console.log(result.join(' '));

        function goLeft(node) {
            if (node.left) goLeft(node.left); 
            result.push(node.data);
        }

        function goRight(node) {
            result.push(node.data);
            if (node.right) goRight(node.right); 
        }
    }

    printTopView(input);
}