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. ...
https://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". publicclassSolution {publicstaticString reverseWords(String s) { String[] strs= s.split(" "); ...
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...
# @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...
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: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...
Reverse words in a string 项目 2013/12/16 Hi folks, I am here with another example, how to reverse words in a string or sentence? I have tried with a approach. I would welcome other approaches, please share.. /// Complexity: O(n) + O(n)/2 ~ O(n) public static string Reverse...
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. fromcollectionsimportdequeclassSolution(object):defreverseWords(self,s):""":type s: str:rtype: str"""ifs==''...
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,需要去除掉这些多余的空格,例如Stri...