main.cpp

    vector<string> &split(const string &s, char delim, vector<string> &elems) {
        stringstream ss(s);
        string item;
        while (getline(ss, item, delim)) {
            elems.push_back(item);
        }
        return elems;
    }

    vector<string> split(const string &s, char delim) {
        vector<string> elems;
        split(s, delim, elems);
        return elems;
    }