Workout

#include <iostream>
#include <cmath>

using namespace std;

int main() {
    int days;
    cin >> days;

    double kilometers, percentage;
    cin >> kilometers;
    double totalKilometers = kilometers;
    for (int i = 0; i < days; i++) {
        cin >> percentage;
        kilometers *= (100.0 + percentage) / 100;
        totalKilometers += kilometers;
    }

    if (totalKilometers < 1000) {
        cout << "Sorry Mrs.Ivanova, you need to run " << 1000 - floor(totalKilometers) << " more kilometers\n";
    }
    else{
        cout << "You've done a great job running " << ceil(totalKilometers) - 1000 << " more kilometers!\n";
    }
    return 0;
}