OOP

double getProfit(SolarPanel panel, double price) {
    double profit = panel.kWh();
    return profit * price;
}

double getProfit(SolarPanel* panels, int n, double price) {
    double profit = 0;
    for (int i = 0; i < n; i++) {
        profit += panels[i].kWh();
    }

    return profit * price;
}