struct Person {
    bool happy = true, knowledgeable = true, ego = false;

    void share(Person& other) {
        if (happy) other.happy = true;
        if (knowledgeable) other.knowledgeable = true;
    }
};

int main() {
    std::vector<Person> coders(10);
    Person you;
    for (auto& coder : coders) you.share(coder);

    // Enjoy coding, spread joy & wisdom!
    return 0;
}