力扣题:字符串的反转-11.24

力扣题-11.24

[力扣刷题攻略] Re：从零开始的力扣刷题生活

力扣题1：151. 翻转字符串里的单词

解题思想：保存字符串中的单词即可

class Solution(object):
    def reverseWords(self, s):
        """
        :type s: str
        :rtype: str
        """
        word_list = s.split()
        result = ""
        for i in range(len(word_list)-1,-1,-1):
            if i != 0 :
                result += word_list[i]+" "
            else:
                result += word_list[i]
        return result

class Solution {
public:
    string reverseWords(string s) {
        vector<string> wordList = splitWords(s);
        string result = "";
        for (int i = wordList.size() - 1; i >= 0; --i) {
            if (i != 0) {
                result += wordList[i] + " ";
            } else {
                result += wordList[i];
            }
        }
        return result;
    }

private:
    vector<string> splitWords(string s) {
        vector<string> words;
        istringstream iss(s);
        string word;
        while (iss >> word) {
            words.push_back(word);
        }
        return words;
    }
};