【Leetcode_easy】884. Uncommon Words from Two Sentences

problem

​​884. Uncommon Words from Two Sentences​​

题意：只要在两个句子中单词出现总次数大于1次即可。

注意掌握istringstream/map/set的使用方法。

solution:

class Solution {
public:
    vector<string> uncommonFromSentences(string A, string B) {
        vector<string> res;
        unordered_map<string, int> tmp;
        istringstream iss(A+" "+B);//err..
        while(iss >> A) tmp[A]++;
        for(auto a:tmp)
        {
            if(a.second==1) res.push_back(a.first);//err..
        }
        return res;
    }
};

 参考

1. ​​Leetcode_easy_884. Uncommon Words from Two Sentences​​;

2. ​​grandyang​​;

3. ​​discuss​​;

完