题目例如以下: 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-space characters…

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. 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…

一年没有管理博客园了,说来实在惭愧.. 最近开始刷LeetCode,之前没刷过,说来也实在惭愧... 刚开始按 AC Rates 从简单到难刷,觉得略无聊,就决定按 Add Date 刷,以后也可能看心情随便选题…(⊙o⊙)…今天做了14年 Add 的三个题,其中 Maximum Product Subarray 着实把我折腾了好一会儿,所以想想还是跟大家分享一下我的解法,也或许有更好的方法,期待大家的分享.就把三个题按 Add Date 的先后顺序分享一下吧. Add Date 2014-03…

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…

Consider the string s to be the infinite wraparound string of "abcdefghijklmnopqrstuvwxyz", so s will look like this: "...zabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcd....". Now we have another string p. Your job is to find…

Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". Have you met this question in a real interview? Yes Clarification What constitutes a word?A sequence of non-space…

编写一个函数,以字符串作为输入,反转该字符串中的元音字母.示例 1:给定 s = "hello", 返回 "holle".示例 2:给定 s = "leetcode", 返回 "leotcede".注意:元音字母不包括 "y".详见:https://leetcode.com/problems/reverse-vowels-of-a-string/description/ C++: class Solutio…

class Solution { public: void reverseWords(string &s) { string end="",tem=""; ]; while(*p!='\0'){ while(*p==' ') //过滤多余的空格,针对串头 p++; while(*p!=' '&&*p!='\0'){ //积累一个单词,存于临时串 tem=tem+*p; p++; } while(*p==' ') //过滤多余的空格,针对串尾…

［抄题］: 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". [暴力解法]:抽出来再放回去:不现实 时间分析: 空…

To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the same size). Each replacement operation has 3 parameters: a starting index i, a source word x and a target word y.  The rul…

LeetCode: Reverse Words in a String:Evaluate Reverse Polish Notation Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some examples: ["2&q…

string类中有很多好用的函数,这里介绍在string类字符串中查找字符串的函数. string类字符串中查找字符串一般可以用: 1.s.find(s1)函数,从前往后查找与目标字符串匹配的第一个位置: 2.s.rfind(s1)函数,从后往前查找与目标字符串匹配的最后一个位置: 3.s.find_first_of(s1),查找在s1中任意一个字符在s中第一次出现的位置 4.s.find_last_of(s1)       查找在s1中任意一个字符在s中最后一次出现的位置 下面给出一道例题:…

字符串中单词的逆转,即将单词出现的顺序进行逆转.如将“Today is Friday!”逆转为“Friday! is Today”. #include<iostream> #include<stdio.h> void Reverse(char *pb,char *pe) { if(pb==NULL||pe==NULL) return; while(pb<pe) { char tmp=*pb; *pb=*pe; *pe=tmp; pb++,pe--; } } char *Rev…

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…

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"…

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…

一.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". click to show clarification. Clarification: What constitutes a word? A sequence of non-space characters c…

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 voi…

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…

Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". Clarification: What constitutes a word? A sequence of non-space characters constitutes a word. Could the input…

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". 比较基础的一个题,拿到这个题,我的第一想法是利用vector来存每一个子串,然后在输出,这是一个比较简单的思路,此外,还有第二个思路,就是对所有的字符反转,然后在针…

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…

题目:左旋转字符串 字符串的左旋转操作是把字符串前面的若干个字符转移到字符串的尾部.请定义一个函数实现字符串左旋转操作的功能.比如,输入字符串"abcdefg"和数字2,该函数将返回左旋转两位得到的结果"cdefgab". 示例 输入 : s = "abcdefg" , n = 2 输出 : s = "cdefgab" 解题思路: 编程语言:C++ 使用两个for循环,第一个for循环将n之后的字符串存入新字符串,第二个for…

题目: 翻转字符串 给定一个字符串,逐个翻转字符串中的每个单词. 样例 给出s = "the sky is blue",返回"blue is sky the" 说明 单词的构成:无空格字母构成一个单词 输入字符串是否包括前导或者尾随空格?可以包括,但是反转后的字符不能包括 如何处理两个单词间的多个空格?在反转字符串中间空格减少到只含一个 解题: 这个题目方法很多的 1.整体反转,对每个单词再反转,但是中间的多个空格还有单独处理 2.把后面的单词,拿到前面去.参考程序…

给定一个字符串,逐个翻转字符串中的每个单词. 示例: 输入: "the sky is blue", 输出: "blue is sky the". 说明: 无空格字符构成一个单词. 输入字符串可以在前面或者后面包含多余的空格,但是反转后的字符不能包括. 如果两个单词间有多余的空格,将反转后单词间的空格减少到只含一个. class Solution { public: void reverseWords(string &s) { int len = s.size…

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"…

We are given two strings, A and B. A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can becom…

Title: Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". https://leetcode.com/problems/reverse-words-in-a-string/ 思路:先将字符串全部逆转,在将每个单词逆转.具体实现,要注意空格,所以对字符串倒过来处理. cla…

原题地址:https://oj.leetcode.com/problems/reverse-words-in-a-string/ 题意: 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:这题很能体现python处理字符串的强大功能. 代码: class Solut…