A sequence of non-space characters constitutes a word. Could the input string contain leading or trailing spaces? Yes. However, your reversed string should not contain leading or trailing spaces. How about multiple spaces between two words? Reduce them to a single space in the reversed string. ...
Reduce them to a single space in the reversed string. 一次遍历,将所有遇到的单词加在头部。 classSolution {public:voidreverseWords(string&s) {stringrs ="";inti =0;while(true) {//skip leading spacewhile(i < s.size() && s[i] =='') i++;stringword ="";//s[i] points to first no...
Can you solve this real interview question? Reverse Words in a String - Given an input string s, reverse the order of the words. A word is defined as a sequence of non-space characters. The words in s will be separated by at least one space. Return a s
# @return a string def reverseWords(self, s): if len(s) == 0: return '' words = s.split(' ') i = 0 while i < len(words): if words[i] == '': del words[i] else: i = i + 1 if len(words) == 0: return '' words.reverse() result = '' for item in words: resul...
题目链接:https://leetcode.com/problems/reverse-words-in-a-string/ 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". 思路: easy 算法: public String reverseWords(String s) { ...
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". */ #include <stdio.h> #include <string.h> #include <stdlib.h> struct node { char *dest; struct node *Next; ...
Reverse Words in a String https://leetcode.com/problems/reverse-words-in-a-string/ 给定一个String,求出这个String 的字符串反转,反转后的以空格为区分的单词需要保持原顺序 例如String = "the sky is blue" ,反转后的结果为"blue is sky the",附加条件:两个单词之间或者句子的收尾可能有多个空格,需要...
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". 1classSolution {2public:3voidreverseWords(string&s)4{5//从前往后扫描6stringres, word;7for(inti = s.size()-1; i >=...
How about multiple spaces between two words?Reduce them to a single space in the reversed string. 原问题链接:https://leetcode.com/problems/reverse-words-in-a-string/ 问题分析 这个问题的思路其实比较简单,因为它只是要把一个字符串里所有非空格的词语顺序给倒过来。那么我们就有这么一个基本的思路,首...
以空格分割单词,返回每个单词逆序之后的字符串。 思路: 方法1: 先用split分割单词,每个单词利用StringBuilder中的逆序函数进行逆序, 再拼接起来即可。 能通过,但是时间排名比较偏后。 publicStringreverseWords(Strings){String[]words=s.split(" ");for(inti=0;i<words.length;i++)words[i]=(newStringBuilder(wo...