Input: root = [1,null,2,3,4,5,null,null,6,7,null,8,null,9,10,null,null,11,null,12,null,13,null,null,14]Output: 5 思路1:DFS ,divide and conquer /*// Definition for a Node.class Node {public int v
文章目录 一、题目二、题解 一、题目 Given a n-ary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node. Nary-Tree
文章目录 一、题目二、题解 一、题目 Given the root of an n-ary tree, return the preorder traversal of its nodes’ values. Nary-Tree input serialization is represented in their level order traversal. Each gro