leetcode

0 class Solution {

1 public:

2 string reverseWords(string s) {

3 string res = "";

4 string buff = "";

5 for (int i = 0; i < s.size(); i++) {

6 if (s[i] != ' ') {

7 buff += s[i];

8 } else if (buff != "") {

9 res = buff + " " + res;

10 buff = "";

11 }

12 }

13 if (buff != "") res = buff + " " + res;

14 if (res != "") res.pop_back();

15 return res;

16 }

17 };