【二叉树的递归】07路径组成数字的和【Sum Root to Leaf Numbers】
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
给定一个二叉树,节点的值仅限于从0-9,每一个从根节点达到叶子节点的路径代表一个数字。
一个例子,如果根节点到叶子节点的路径是 1->2->3,那么代表这个数字是123。
寻找所有路径代表的数字的和。
例如:
1
/ \
2 3
从根节点到叶子节点的路径是 1->2 代表的数字是 12.从根节点到叶子节点的路径是 1->3 代表的数字是 13.
返回和为 sum = 12 + 13 = 25.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number.
An example is the root-to-leaf path 1->2->3 which represents the number 123.
Find the total sum of all root-to-leaf numbers.
For example,
1
/ \
2 3
The root-to-leaf path 1->2 represents the number 12.
The root-to-leaf path 1->3 represents the number 13.
Return the sum = 12 + 13 = 25.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
test.cpp:
|
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 |
#include <iostream>
#include <cstdio> #include <stack> #include <vector> #include "BinaryTree.h" using namespace std; /** // 树中结点含有分叉, ConnectTreeNodes(pNodeA1, pNodeA2, pNodeA3); PrintTree(pNodeA1); //81 + 8627 + 8624 + 869 = 18201 DestroyTree(pNodeA1); |
结果输出:
18201
|
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
#ifndef _BINARY_TREE_H_
#define _BINARY_TREE_H_ struct TreeNode TreeNode *CreateBinaryTreeNode(int value); #endif /*_BINARY_TREE_H_*/ |
|
1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 |
#include <iostream>
#include <cstdio> #include "BinaryTree.h" using namespace std; /** //创建结点 return pNode; //连接结点 //打印节点内容以及左右子结点内容 if(pNode->left != NULL) if(pNode->right != NULL) printf("\n"); //前序遍历递归方法打印结点内容 if(pRoot != NULL) if(pRoot->right != NULL) void DestroyTree(TreeNode *pRoot) delete pRoot; DestroyTree(pLeft); |
【二叉树的递归】07路径组成数字的和【Sum Root to Leaf Numbers】的更多相关文章
- Leetcode之深度优先搜索(DFS)专题-129. 求根到叶子节点数字之和(Sum Root to Leaf Numbers)
Leetcode之深度优先搜索(DFS)专题-129. 求根到叶子节点数字之和(Sum Root to Leaf Numbers) 深度优先搜索的解题详细介绍,点击 给定一个二叉树,它的每个结点都存放 ...
- LeetCode 129. 求根到叶子节点数字之和(Sum Root to Leaf Numbers)
题目描述 给定一个二叉树,它的每个结点都存放一个 0-9 的数字,每条从根到叶子节点的路径都代表一个数字. 例如,从根到叶子节点路径 1->2->3 代表数字 123. 计算从根到叶子节点 ...
- [LeetCode] 129. Sum Root to Leaf Numbers 求根到叶节点数字之和
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number ...
- [Swift]LeetCode129. 求根到叶子节点数字之和 | Sum Root to Leaf Numbers
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number ...
- [Leetcode] Sum root to leaf numbers求根到叶节点的数字之和
Given a binary tree containing digits from0-9only, each root-to-leaf path could represent a number. ...
- [LeetCode] Sum Root to Leaf Numbers 求根到叶节点数字之和
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number ...
- 129. Sum Root to Leaf Numbers pathsum路径求和
[抄题]: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a ...
- LeetCode OJ:Sum Root to Leaf Numbers(根到叶节点数字之和)
Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number ...
- [LeetCode]129. Sum Root to Leaf Numbers路径数字求和
DFS的标准形式 用一个String记录路径,最后判断到叶子时加到结果上. int res = 0; public int sumNumbers(TreeNode root) { if (root== ...
随机推荐
- Windows下安装redis和在php中使用phpredis扩展
详细博客地址:https://my.oschina.net/junn/blog/281058
- python的协程和_IO操作
协程Coroutine: 协程看上去也是子程序,但执行过程中,在子程序内部可中断,然后转而执行别的子程序,在适当的时候再返回来接着执行. 注意,在一个子程序中中断,去执行其他子程序,不是函数调用,有点 ...
- POJ 2092 Grandpa is Famous【水---找出现第二多的数】
链接: http://poj.org/problem?id=2092 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=27454#probl ...
- php生成条形码: barcodegen
实例结构: 1. index.html <!DOCTYPE html> <html> <head> <title>Test with embedded ...
- centos出现-bash: /usr/bin/php: 没有那个文件或目录解决方法
造成这个的原因是因为找不到php的执行文件导致的,原先我是安装的php5.4,然后卸载了重新安装php7,导致php可执行文件没有放到$PATH中,可以在终端测试:php -v,如果报错bash: / ...
- Python锁
# coding:utf-8 import threading import time def test_xc(): f = open("test.txt","a&quo ...
- JVM类加载器
系统中的类加载器 1.BootStrap ClassLoader a.启动ClassLoader b.加载rt.jar 2.Extension ClassLoader a.扩展ClassLoader ...
- 12.Django数据库操作(执行原生SQL)
1.使用extra方法 解释:结果集修改器,一种提供额外查询参数的机制 说明:依赖model模型 用在where后: Book.objects.filter(publisher_id="1& ...
- activiti--4----------------------------------流程变量
一.流程变量的作用 1.用来传递业务参数 2.指定连线完成任务(同意或拒绝) 3.动态指定任务办理人 二.测试代码块 Person类 package com.xingshang.processVari ...
- cloudera impala编译 安装 配置 启动
无论是采用GDB调试impala或者尝试修改impala源码,前提都是需要本地环境编译impala,这篇文章详细的分享一下impala编译方法以及编译过程遇到的棘手的问题: 前言: impala官方的 ...