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". 要求: 1)首尾有空格的时候,反转后的string要将空格去掉 2)当string有多个连续空格的时候,只保留一个空格. 代码分析: 对多余空格剔除: 思路分析: 1)从原始s 的最末尾开始扫描,如果遇到空格,用whil…

problem: Given an input string, reverse the string word by word. For example: Given s = "the sky is blue", return "blue is sky the". 问题分析:如何准确的找到每一个需要清除的空格的位置pos,以及每个word对应的pos范围? 解决方法:需要反转一个字符串,使用int string.find_last_not_of(char c, in…

7 - Reverse digits of an integer. Example1: x = 123, return 321Example2: x = -123, return -321 Notice: 1.If the integer's last digit is 0, what should the output be? ie, cases such as 10, 100. 2.Did you notice that the reversed integer might overflow…

翻转字符串 先把字符串转化成数组,再借助数组的reverse方法翻转数组顺序,最后把数组转化成字符串. 你的结果必须得是一个字符串 这是一些对你有帮助的资源: Global String Object String.split() Array.reverse() Array.join() 1 2 3 function reverseString(str) {   return str.split('').reverse().join(''); } 这里用到了一个字符串方法和两个数组方法,spli…

[Q7]  把数倒过来 Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 120 Output: 21 Solution: https://leetcode.com/problems/reverse-integer/discuss/229800/Pyt…

题目: 翻转字符串 先把字符串转化成数组,再借助数组的reverse方法翻转数组顺序,最后把数组转化成字符串. 你的结果必须得是一个字符串 这是一些对你有帮助的资源: Global String Object String.split() Array.reverse() Array.join() function reverseString(str) { return str.split('').reverse().join(''); } 这里用到了一个字符串方法和两个数组方法,split()方…

今天的两道题关于基本数据类型的探讨,估计也是要考虑各种情况,要细致学习 7. Reverse Integer Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 Have you thought about this? Here are some good questions to ask before coding. Bonus points for you if…

题目描述: 先把字符串转化成数组,再借助数组的reverse方法翻转数组顺序,最后把数组转化成字符串.你的结果必须得是一个字符串. 算法: function reverseString(str) { // 请把你的代码写在这里 str = str.split("").reverse().join(""); return str; } reverseString("hello");…

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 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…

问题描述: 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: 先利用split()方法将句子按空格分为几个单词的列表, 然后reverse()函数使列表逆序, 最后join函数以空格为间隔拼成字符串返回结果. Python代码: class Solution:  …

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…

问题 Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". 面试时我应该至少问的问题 What constitutes a word? A sequence of non-space characters constitutes a word. Could the input…

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 =…

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

今天第一次在leetcode上提交了一个题目,据说这个网站基本上都是名企面试笔试题,今天无意一进去就看到第一题居然就是昨天的腾讯实习生笔试题,赶紧注册了个账号做题. 题目描述: Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the".   很简单的英文就不翻译了.题目不难但是做这个题…

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". public class Solution { public String reverseWords(String s) { String afterTrim= s.trim(); String[] split=afterTr…

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 consti…

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()…

Problem link: http://oj.leetcode.com/problems/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". LeetCode OJ supports Python now! The s…

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…

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…

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…

Reverse Words in a String  单词取反 whowhoha@outlook.com Question: Given an input string s, reverse the string word by word. For example, given s = "the sky is blue", return "blue is sky the". void reverseWords(string &s) { vector <…

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 the words are always separated by a single space. For example,Given…

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…

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…

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". Clarification: What constitutes a word?A sequence of non-space characters constitutes a…