C++| stringstream| hashmap
class Solution {\npublic:\n    vector uncommonFromSentences(string s1, string s2) {\n        \n        vector ss;\n       \n        \n        vector ou;\n      
class Solution {\npublic:\n    vector<string> uncommonFromSentences(string s1, string s2) {\n        \n        vector<string> ss;\n       \n        \n        vector<string> ou;\n        \n        stringstream str1(s1);\n        stringstream str2(s2);\n        \n        string word1;\n        string word2;\n        \n        while(str1 >> word1)\n            ss.push_back(word1);\n        \n         \n        while(str2 >> word2)\n            ss.push_back(word2);\n        \n        unordered_map<string,int> hash;\n        \n        for(auto i: ss)\n            hash[i]++;\n        \n        for(int i = 0; i < ss.size(); i++)\n        {\n            if(hash[ss[i]] == 1)\n                ou.push_back(ss[i]);\n        }\n        \n        return ou;\n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n    }\n};
['C', 'C++']