Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Update (2015-02-12):For C programmers: Try to solve it in-place in O(1) space. 倒序字符串. 注意使用BufferString,因为如果使用Stri…

557. Reverse Words in a String III 最简单的把空白之间的词反转 class Solution { public: string reverseWords(string s) { vector<int> blank; ;i < s.size();i++){ if(s[i] == ' ') blank.push_back(i); } ; int end; ;i < blank.size();i++){ end = blank[i] - ; revers…

题目: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". 解析:将字符串中的单词逆序输出 借助一个堆栈,从前向后遍历字符串,遇到空,跳过,直到非空字符,拼接word,等再次遇到空时,得到一个word,加入堆栈, 以此类推,直到…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Update (2015-02-12):For C programmers: Try to solve it in-place in O(1) space. Clarification: What constitutes a…

Reverse Words in a String Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue" Output: "blue is sky the" Example 2: Input: " hello world! " Output: "world! hello" Explanation:…

Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 解题思路: 本题方法多多,最简单的方式直接按“ ” spilt即可,JAVA实现如下: public String reverseWords(String s) { if (s == null || s.length()…

Difficulty: Medium  More:[目录]LeetCode Java实现 Description Given an input string, reverse the string word by word. Example: Input: "the sky is blue", Output: "blue is sky the". Note: A word is defined as a sequence of non-space character…

给定一个字符串,翻转字符串中的每个单词.例如,给定 s = "the sky is blue",返回 "blue is sky the".对于C程序员:请尝试用O(1) 时间复杂度的原地解法.说明:    什么构成一个词?    一系列非空格字符组成一个词.    输入字符串是否可以包含前导或尾随空格?    是.但是,您的反转字符串不应包含前导或尾随空格.    两个单词之间多空格怎么样?    将它们缩小到反转字符串中的单个空格.详见:https://leetc…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". public class Solution { public String reverseWords(String s) { String afterTrim= s.trim(); String[] split=afterTr…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Update (2015-02-12):For C programmers: Try to solve it in-place in O(1) space. click to show clarification. Clari…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". public class Solution { public String reverseWords(String s) { if(s.equals(""))return s; String arr[]=s…

［抄题］: Given an input string, reverse the string word by word. Example: Input: "the sky is blue", Output: "blue is sky the". [暴力解法]: 时间分析: 空间分析: [优化后]: 时间分析: 空间分析: ［奇葩输出条件］: ［奇葩corner case］: ［思维问题］: 打碎成数组后再添加,居然有看不懂的bug. public class So…

思路: 本题考查的目的并不是使用字符串的函数.方法是两次reverse,先对每个单词先做一次翻转,然后对整个字符串做一次翻转. 需要注意的是去除extra space,并且对全space字符串.以及最后一个单词要做特殊处理. class Solution { public: void reverseWords(string &s) { ; ; ; ; // point to the string with extra space deleted //ignore space at the beg…

Given an input string, reverse the string word by word. Example: Input: "the sky is blue",Output: "blue is sky the".Note: A word is defined as a sequence of non-space characters.Input string may contain leading or trailing spaces. Howe…

Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. 这题遇到的困难主要是细节地方处理的不好:(1)空格的处理,(2…

Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue" Output: "blue is sky the" Example 2: Input: "  hello world!  " Output: "world! hello" Explanation: Your reversed string sho…

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 日期 题目地址:https://leetcode.com/problems/reverse-words-in-a-string/description/ 题目描述 Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue"…

原题地址 将单词按空格分词,然后倒序拼接即可 代码: void reverseWords(string &s) { vector<string> words; ; ; ; i < s.length(); i++) { if (s[i] == ' ') { ) words.push_back(s.substr(start, len)); len = ; } else { ) { start = i; len = ; } else len++; } } ) words.push_ba…

151. 翻转字符串里的单词 151. Reverse Words in a String…

Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters.The input string does not contain leading or trailing spaces and the words are always separated by a single space.For example,Given s = "t…

［抄题］: Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. Example 1: Input: "Let's take LeetCode contest" Output: "s'teL ekat edoCteeL tsetnoc&…

Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. Example 1: Input: "Let's take LeetCode contest" Output: "s'teL ekat edoCteeL tsetnoc"…

Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space. click to show clarification. Cl…

原题链接在这里:https://leetcode.com/problems/reverse-words-in-a-string-ii/ 题目: Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters. The input string does not contain leading or trailing spaces and…

leetcode面试准备:Reverse Words in a String 1 题目 Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Update (2015-02-12): For C programmers: Try to solve it in-place in…

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". click to show clarification. Clarification:What constitutes a word?A sequence of non-sp…

1. Linked List Cycle II Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Note: Do not modify the linked list. 思路:想法是利用两指针,一个每次移动一步,另一个每次移动两步,如果存在环则这两个指针一定会相遇(这里可以在纸上画一下,因为后一个指针移动比前一个指针快,当后一个指针在环中来到前一个指针的…

Question 345. Reverse Vowels of a String Solution 思路:交换元音,第一次遍历,先把出现元音的索引位置记录下来,第二遍遍历元音的索引并替换. Java实现: public String reverseVowels(String s) { List<Integer> store = new ArrayList<>(); char[] arr = s.toCharArray(); for (int i=0; i< arr.lengt…

Write a function that takes a string as input and reverse only the vowels of a string. Example 1:Given s = "hello", return "holle". Example 2:Given s = "leetcode", return "leotcede". 这道题让我们翻转字符串中的元音字母,元音字母有五个a,e,i,o…

Given an input string, reverse the string word by word. A word is defined as a sequence of non-space characters.The input string does not contain leading or trailing spaces and the words are always separated by a single space.For example,Given s = "t…