429.N叉树的层序遍历 public List<List<Integer>> levelOrder(Node root) { List<List<Integer>> result = new ArrayList<>(); if (root == null) { return result; } Queue<Node> queue = new
2023每日刷题(二十五) Leetcode—637.二叉树的层平均值 BFS实现代码 /*** Definition for a binary tree node.* struct TreeNode {* int val;* struct TreeNode *left;* struct TreeNode *right;* };*//*** Note: The