然后就用一个string res每次都从队列将的单词取出来,然后判断是否队列为空,不为空就加一个空格。 代码: 1classSolution {2public:3stringreverseWords(strings) {4intn=s.size();5deque<string>q;6stringword="";7intleft=0,right=n-1;8while(left<=right&&s[left]=='') left++;9while(left<=right&...
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...
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. ...
2 public String reverseWords(String str){ 3 String str_result = ""; 4 String str_word = ""; 5 char array_src[] = str.toCharArray(); 6 char array_word[]; 7 int count = 0; 8 int i =array_src.length - 1; 9 int j = i; 10 boolean isWord = false; //判断是否有单词 11 ...
Given an input string,reverse the string word by word.For example,Given s="the sky is blue",return"blue is sky the". 比较基础的一个题,拿到这个题,我的第一想法是利用vector来存每一个子串,然后在输出,这是一个比较简单的思路,此外,还有第二个思路,就是对所有的字符反转,然后在针对每一个子串反转...
151. 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”. Update (2015-02-12): For C programmers: Try to solve it in-place in O(1) space....
[LeetCode]Reverse Words in a String 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”. 把句子看做由词组成的,例如“A B C......
: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 itin-placeinO(1) space. click to show clarification. ...
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. Clarification: What constitutes a word?A sequen...
string reversed in pass 1 Reverse(str, str + strlen(str) - 1); char *c1 = str, *c2 = str + 1; do { // find word boundary for(;*c2 != ' ' && *c2; c2++); // reverse each word Reverse(c1, c2 - 1); if (!*c2) break; // reached end of string c1 = ++c2; }...