C#•2y ago

❔ a small hint requested

I tried to resolve this LeetCode puzzle https://leetcode.com/problems/binary-tree-level-order-traversal/?envType=study-plan&id=level-1 And my code is full of errors

public class Solution {
    public IList<IList<int>> LevelOrder(TreeNode root) {
        List<int> tree = new List<int>();
        List<int> separation = new List<int>();
        Queue<int> numbers = new Queue<int>();
        TreeNode node = new TreeNode();
        numbers.Add(root.val);
        if(root == null){
            return tree;
        }

        while(root.Count > 0){
            numbers.Enqueue(node.left);
            numbers.Enqueue(node.right);
            if(node.left == null || node.right == null){
                continue;
            }
            
        }
        separation.Add(numbers);
        tree.Add(separation);
        return tree;
    }
}

public class Solution {
    public IList<IList<int>> LevelOrder(TreeNode root) {
        List<int> tree = new List<int>();
        List<int> separation = new List<int>();
        Queue<int> numbers = new Queue<int>();
        TreeNode node = new TreeNode();
        numbers.Add(root.val);
        if(root == null){
            return tree;
        }

        while(root.Count > 0){
            numbers.Enqueue(node.left);
            numbers.Enqueue(node.right);
            if(node.left == null || node.right == null){
                continue;
            }
            
        }
        separation.Add(numbers);
        tree.Add(separation);
        return tree;
    }
}

Could anyone kindly provide some pointers for me? I feel like starting to bang my head against my keyboard lol

LeetCode

LeetCode - The World's Leading Online Programming Learning Platform

Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.

1 Reply

Accord•2y ago

Looks like nothing has happened here. I will mark this as stale and this post will be archived until there is new activity.

Gaming

Programming

❔ a small hint requested