题目: You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis pai…

You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis pairs t…

你需要采用前序遍历的方式,将一个二叉树转换成一个由括号和整数组成的字符串. 空节点则用一对空括号 "()" 表示.而且你需要省略所有不影响字符串与原始二叉树之间的一对一映射关系的空括号对. 示例 1: 输入: 二叉树: [1,2,3,4] 1 / \ 2      3 / 4 输出: "1(2(4))(3)" 解释: 原本将是"1(2(4)())(3())", 在你省略所有不必要的空括号对之后, 它将是"1(2(4))(3)"…

You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis pairs t…

题目要求 You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis pa…

题意 给一棵二叉树,把它转化为字符串返回.转化字符串的要求如下: 1.  null 直接转化为  () ;(这个要求其实有点误导人~) 2. 子节点用 () 包裹起来:(这是我自己根据例子添加的要求) 3. 省略所有不影响 二叉树 与 字符串 之间 一对一 关系的 () ; 做题链接 代码 //JavaScript var tree2str = function(t) { if(t === null) return ''; if(t.left === null && t.right ===…

［抄题］: You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you need to omit all the empty parenthesis p…

606. Construct String from Binary Tree [easy] You need to construct a string consists of parenthesis and integers from a binary tree with the preorder traversing way. The null node needs to be represented by empty parenthesis pair "()". And you…

problem 606. Construct String from Binary Tree 参考 1. Leetcode_easy_606. Construct String from Binary Tree; 完…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 方法一:先序遍历 日期 题目地址:https://leetcode.com/problems/construct-string-from-binary-tree/description/ 题目描述 You need to construct a string consists of parenthesis and integers from a bi…