kalveroni

struct AvgYear
{
    AvgYear() : m_game() {}
    bool operator()(const BoardGame & m_game)
    {
        for (size_t i = 0; i < m_GamesByYear.size(); i++)
        {
            if (m_GamesByYear[i][0].year == m_game.year)
            {
                m_GamesByYear[i].push_back(m_game);
                return true;
            }
        }
        m_GamesByYear.push_back(vector<BoardGame>{m_game});
        return false;
    }
    BoardGame m_game;
    vector<vector<BoardGame>> m_GamesByYear;
};
std::ostream & operator << (std::ostream & stream, const AvgYear & avgYear)
{
    float HeighestAverage = 0.0f;
    int yearOfMaxAvg = 0;
    for (size_t i = 0; i < avgYear.m_GamesByYear.size(); i++)
    {
        float average = 0.0f;
        for (size_t e = 0; e < avgYear.m_GamesByYear[i].size(); e++)
        {
            average += (avgYear.m_GamesByYear[i][e].rating);
        }
        average = average / avgYear.m_GamesByYear[i].size();


        if (HeighestAverage< average)
        {
            HeighestAverage = average;
            yearOfMaxAvg = avgYear.m_GamesByYear[i][0].year;
        }
    }
    stream << "The best average score for one year was " << HeighestAverage << " in the year " << yearOfMaxAvg;

    return stream;
}