02. Hospital

#include <iostream>

using namespace std;

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

    int treated = 0, untreated = 0, doctors = 7;

    int currentDayPatients;

    for (int i = 1; i <= days; i++) {
        cin >> currentDayPatients;

        if (untreated > treated && i % 3 == 0) {
            doctors++;
        }
        if (currentDayPatients > doctors) {
            treated += doctors;
            untreated += currentDayPatients - doctors;
        }
        else {
            treated += currentDayPatients;
        }
    }

    cout << "Treated patients: " << treated << "." << endl;
    cout << "Untreated patients: " << untreated << "." << endl;

    return 0;
}

Решение с тернарен оператор:

#include <iostream>

using namespace std;

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

    int treated = 0, untreated = 0, doctors = 7;

    int currentDayPatients;

    for (int i = 1; i <= days; i++) {
        cin >> currentDayPatients;

        untreated > treated && i % 3 == 0 ? doctors++ : doctors;
        currentDayPatients > doctors ? treated += doctors : treated += currentDayPatients;
        currentDayPatients > doctors ? untreated += currentDayPatients - doctors : untreated;
    }

    cout << "Treated patients: " << treated << ".\nUntreated patients: " << untreated << ".\n";

    return 0;
}