// Importing necessary Java utilities.importjava.util.*;// Define a class named Main.publicclassMain{// Method to reverse words in a given string.publicstaticStringWordsInReverse(Stringstr1){// Create a StringBuilder object and reverse the entire string.StringBuildersb=newStringBuilder(str1);Strin...
02 第一种解法 将s按照空格拆分为字符串数组,然后对数组中的每一个元素做翻转,再以空格拼接,作为结果返回。 publicStringreverseWords(Strings) {String[] arr = s.split(" ");StringBuilderresult =newStringBuilder();for(int i=0; i<arr.length; i++) {Stringss = arr[i];StringBuildersb =newStringBui...
151. Reverse Words in a String(java 注意细节处理) 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...
https://leetcode.com/problems/reverse-words-in-a-string/discuss/47720/Clean-Java-two-pointers-solution-(no-trim(-)-no-split(-)-no-StringBuilder) public class Solution { public String reverseWords(String s) { if (s == null) return null; char[] a = s.toCharArray(); int...
LeetCode Top Interview Questions 557. Reverse Words in a String III (Java版; Easy) 题目描述 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. ...
151. 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: Your reversed string should not contain leading...
publicStringreverseWords(Strings){if(s==null)returnnull;char[]a=s.toCharArray();intn=a.length;// step 1. reverse the whole stringreverse(a,0,n-1);// step 2. reverse each wordreverseWords(a,n);// step 3. clean up spacesreturncleanSpaces(a,n);}voidreverseWords(char[]a,intn){int...
考虑几个特殊的情况 1.若字符窜s=" " 2.字符窜s=“a b d e” 3.字符窜s=“ a”然后在s后面+上一个‘ ’,每次遇到s[i]为空格,s[i-1]不为空格的时候为一个单词 class Solution { public: void reverseWords(string &s)...
Reverse Words in a String -- LeetCode 原题链接:http://oj.leetcode.com/problems/reverse-words-in-a-string/ 这道题是字符串处理的题目,我们先介绍一种很直接的做法,就是类似于java中String::split函数做的操作,把字符串按空格分开,不过我们把重复的空格直接忽略过去。接下来就是把得到的结果单词反转过来...
const str = 'Hello World how is it outside'; const reverseSentence = str => { const arr = str.split(" "); const reversed = arr.map(el => { return el.split('').reverse().join(""); }); return reversed.join(" "); }; console.log(reverseSentence(str)); Advertisement - This...