算法

(模拟)

取出每个单词，然后翻转一下即可。

C++ 代码

class Solution {
public:
    string reverseWords(string s) {
        string word = "", ans = "";
        for (auto c : s) {
            if (c == ' ') {
                if (word != "") {
                    reverse(word.begin(), word.end());
                    ans += word;
                }
                word = "";
                ans += c;
            }
            else word += c;
        }
        if (word != "") {
            reverse(word.begin(), word.end());
            ans += word;
        }
        return ans;
    }
};