02. Harvest

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double vineyard, grapes, need_wine, workers;
    cin >> vineyard >> grapes >> need_wine >> workers;

    double total_grapes = vineyard * grapes;
    double wine = 0.4 * total_grapes / 2.5;
    double total_wine = wine - need_wine;
    double results = total_wine / workers;

    if (wine >= need_wine)
    {
        int floor_wine = floor(wine);
        int ceild_total_wine = ceil(total_wine);
        int ceild_results = ceil(results);
        cout << "Good harvest this year! Total wine: " << floor_wine << " liters." << endl;
        cout << ceild_total_wine << " liters left -> " << ceild_results << " liters per person." << endl;
    }
    else
    {
        int floor_total_wine = abs(total_wine);
        total_wine = abs(total_wine);
        cout << "It will be a tough winter! More "
            << floor_total_wine << " liters wine needed." << endl;
    }
    return 0;
}