Easter Guests

#include <iostream>
#include <iomanip>
#include <cmath>

using namespace std;

int main() {
    double guests, budget;
    cin >> guests >> budget;

    budget -= ceil(guests / 3) * 4 + guests * 2 * 0.45;

    if (budget < 0) {
        cout << "Lyubo doesn't have enough money.\n"
            << "He needs " << fixed << setprecision(2) << abs(budget) << " lv. more.\n";
    }
    else {
        cout << "Lyubo bought " << ceil(guests / 3) << " Easter bread and " << guests * 2 << " eggs.\n"
            << "He has " << fixed << setprecision(2) << budget << " lv. left.\n";
    }
    return 0;
}