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- //URL FOR THE TASK: https://judge.softuni.bg/Contests/Practice/Index/715#3
- #include <iostream>
- #include <iomanip>
- using namespace std;
- int main()
- {
- int train_days;
- int num_dancers;
- cin >> train_days >> num_dancers;
- int energy_loss = 0;
- int total_energy = 100 * num_dancers * train_days;
- for (int i = 1; i <= train_days; ++i)
- {
- int train_hours;
- cin >> train_hours;
- int train = i % 2 == 0;
- int hours = train_hours % 2 == 0;
- int energy = 0;
- if (train && hours)
- {
- energy = 68;
- }
- else if (!train && hours)
- {
- energy = 49;
- }
- else if (train && !hours)
- {
- energy = 65;
- }
- else if (!train && !hours)
- {
- energy = 30;
- }
- double current_energy_used = energy * num_dancers;
- energy_loss += current_energy_used;
- }
- double left = total_energy - energy_loss;
- double energy_each_person = left / num_dancers / train_days;
- if (energy_each_person > 50)
- {
- cout << "They feel good! Energy left: "
- << fixed << setprecision(2) << energy_each_person
- << endl;
- }
- else
- {
- cout << "They are wasted! Energy left: "
- << fixed << setprecision(2) << energy_each_person
- << endl;
- }
- return 0;
- }
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