Leetcode Reverse Words in a String
Given an input string, reverse the string word by word.
For example,
Given s = "the sky is blue
",
return "blue is sky the
".
此题要注意的几个情况是:
(1)输入字符串可能含有前缀0和后缀0
(2)字符串中每个单词之间可能含有多个空格
(3)字符串是空串
(3)字符串只有一个单词
此题主要是根据空格分隔单词,然后将分隔后单词的顺序逆转一下即可
void reverseWords(string &s){
string buf;
stringstream ss(s);
vector<string> word;
while(ss >> buf) word.push_back(buf);
if(word.size() == ) s="";
else{
s="";
int n = word.size();
for(int i = n -; i >=; -- i){
if(i!=n-) s+=" ";
s+=word[i];
}
}
}
Leetcode Reverse Words in a String的更多相关文章
- LeetCode: Reverse Words in a String:Evaluate Reverse Polish Notation
LeetCode: Reverse Words in a String:Evaluate Reverse Polish Notation Evaluate the value of an arithm ...
- [LeetCode] Reverse Vowels of a String 翻转字符串中的元音字母
Write a function that takes a string as input and reverse only the vowels of a string. Example 1:Giv ...
- [LeetCode] Reverse Words in a String II 翻转字符串中的单词之二
Given an input string, reverse the string word by word. A word is defined as a sequence of non-space ...
- [LeetCode] Reverse Words in a String 翻转字符串中的单词
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue ...
- LeetCode Reverse Words in a String II
原题链接在这里:https://leetcode.com/problems/reverse-words-in-a-string-ii/ 题目: Given an input string, rever ...
- [LeetCode] Reverse Words in a String III 翻转字符串中的单词之三
Given a string, you need to reverse the order of characters in each word within a sentence while sti ...
- LeetCode: Reverse Words in a String 解题报告
Reverse Words in a String Given an input string, reverse the string word by word. For example,Given ...
- LeetCode Reverse Vowels of a String
原题链接在这里:https://leetcode.com/problems/reverse-vowels-of-a-string/ 题目: Write a function that takes a ...
- LeetCode: Reverse Words in a String && Rotate Array
Title: Given an input string, reverse the string word by word. For example,Given s = "the sky i ...
- [leetcode]Reverse Words in a String @ Python
原题地址:https://oj.leetcode.com/problems/reverse-words-in-a-string/ 题意: Given an input string, reverse ...
随机推荐
- Xcode 7如何免费真机调试iOS应用
Xcode 7如何免费真机调试iOS应用的简单方式: 运行Xcode后,点击菜单中的Preferences…进入Accounts标签,这里选择添加Apple ID:在弹出的对话框中登入你的Apple ...
- Delphi的字符串、PChar和字符数组之间的转换
参考:http://my.oschina.net/kavensu/blog/193719 以下的各种方法都是我在Delphi 6的环境下测试成功的,可能根据你的开发环境.不同的上下文语境……有一些可能 ...
- OCJP(1Z0-851) 模拟题分析(三)over
Exam : 1Z0-851 Java Standard Edition 6 Programmer Certified Professional Exam 以下分析全都是我自己分析或者参考网上的,定有 ...
- AngularJS讲义-控制器
在Angular中,控制器(Controller)就是基于JavaScript的构造方法,主要用来构造模型并建立模型和视图之间的数据绑定.控制器里面定义了应用程序的逻辑和行为. 通过ng-contro ...
- C# IIS应用程序池辅助类 分类: C# Helper 2014-07-19 09:50 249人阅读 评论(0) 收藏
using System.Collections.Generic; using System.DirectoryServices; using System.Linq; using Microsoft ...
- Oracle Segments可以跨多个data files吗?
首先,你需要明白的一点是:数据库的物理结构是由数据库的操作系统文件所决定,每一个Oracle数据库是由三种类型的文件组成:数据文件.日志文件和控制文件.数据库的文件为数据库信息提供真正的物理存储.每一 ...
- android 入门-生命周期 activity
生命周期 activity http://blog.csdn.net/android_tutor/article/details/5772285 http://www.cnblogs.com/John ...
- php正则获取网页标题、关键字、网页描述代码
php正则获取网页关键字,代码如下: function get_keywords($html) { $html=strtolower($html); preg_match("@<hea ...
- WPF MVVM模式下实现ListView下拉显示更多内容
在手机App中,如果有一个展示信息的列表,通常会展示很少一部分,当用户滑动到列表底部时,再加载更多内容.这样有两个好处,提高程序性能,减少网络流量.这篇博客中,将介绍如何在WPF ListView中实 ...
- AndroidStudio创建新项目报错
创建新项目自动执行时报错: Failed to import new Gradle project: failed to find Build Tools revision 17.0.0 Consul ...