思路和做法1一样,只是为了消空格方便,用string流。 Time complexity: O(n) Space complexity: O(n) classSolution{public:voidreverseWords(string &s){reverse(s.begin(), s.end());stringstreamss(s); string str, ret;while(ss >> str) {reverse(str.begin(), str.end());for(charc : str) { ...
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. ...
# @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...
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
Reverse Words in a String leetcode:https://oj.leetcode.com/problems/reverse-words-in-a-string 今天写了开题报告,有点不太想开那个报告了,没事又去A了一道ACM。这次A的是系统随机推荐的,刚看的时候以为是一个Easy类型的。感觉不太难 PS:一开始把题目理解错了,以为直接把所有字符Reverse。实际是将单词...
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; ...
classSolution{public:stringreverseWords(string s){for(inti=0;i<s.length();i++){if(s[i]!=' '){// when i is a non-spaceintj=i;for(;j<s.length()&&s[j]!=' ';j++){}// move j to the next spacereverse(s.begin()+i,s.begin()+j);i=j-1;}}returns;}};...
[LeetCode] 186. Reverse Words in a String II 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....
151. Reverse Words in a String # 题目 # 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 s
https://oj.leetcode.com/problems/reverse-words-in-a-string/ 分三步,1. reverse line; 2. reverse words; 3. erase extra spaces; ...Leetcode之Reverse Words in a String 题目: Given an input string, reverse the string word by word. Example 1: Example 2: Example 3: Note: A word is...