#include "leetcode.h" class Solution { public: string reverseWords(string s) { int i = 0; for (int j = 0; j < s.size(); ++j) { if (s[j] == ' ') { reverse(s.begin() + i, s.begin() + j); i = j + 1; } } reverse(s.begin() + i, s.end()); return s; } }; int main() { Solution obj; cout << obj.reverseWords("Let's take LeetCode contest"); }