Accumulate
\nC++\ncpp\nbool isAcronym(vector<string>& words, string s) {\n    return accumulate(begin(words), end(words), string(), [](string res, const string &w){\n     
\n**C++**\n```cpp\nbool isAcronym(vector<string>& words, string s) {\n    return accumulate(begin(words), end(words), string(), [](string res, const string &w){\n        return res + w[0];\n    }) == s;\n}\n```
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