Добавить счётчик дней в код

#include <string>
#include <iostream>
 
struct Weather {
    double temperature = 0;
    double speed = 0;
    std::string precipitation;
    std::string wind;
};
 
const Weather getWeather() {
    Weather x;
    std::cout << "enter temperature: ";
    std::cin >> x.temperature;
 
    std::cout << "enter speed: ";
    std::cin >> x.speed;
 
    // rain or snow, no check!
    std::cout << "enter precipitation: ";
    std::cin >> x.precipitation;
    
    std::cout << "Enter wind: ";
    std::cin >> x.wind;
 
    return x;
}
 
int main() {
    std::string flag;
    double avgT = 0;
    double avgS = 0;
    int r = 0;
    int s = 0;
 
    int counter = 0;
    do
    {
        Weather x;
        x = getWeather();
        avgT = avgT + x.temperature;
        avgS = avgS + x.speed;
 
        if (x.precipitation == "rain")
            r = r + 1;
        if (x.precipitation == "snow")
            s = s + 1;
 
        std::cout << "enter flag: ";
        std::cin >> flag;
        counter += 1;
    } while (flag != "quit");
 
    std::cout << "avg temperature = " << avgT / counter << "\n";
    std::cout << "avg speed = " << avgS / counter << "\n";
 
    if (r > s) std::cout << "rain" << " occurs most often";
    else if (r < s) std::cout << "snow" << " occurs most often";
    else std::cout << "rain and snow occurs the same";
 
    return 0;
}

    int counter = 0;
    do
    {
        std::cout << "Day " << counter + 1 << "\n";
        Weather x;
        x = getWeather();
        // ...
        counter += 1;
    } while (flag != "quit");