#include <iostream>
using namespace std;

int main() {
    int count;
    cout << "Enter number of packages bought: ";
    cin >> count;

    double discount = 0;

    if (count < 10) {
        discount = 0;  
    } else if (count >= 10 && count <= 19) {
        discount = 20 / 100.0;
    } else if (count >= 20 && count <= 49) {
        discount = 30 / 100.0;
    } else if (count >= 50 && count <= 99) {
        discount = 40 / 100.0;
    } else if (count >= 100) {
        discount = 50 / 100.0;
    }

    double costbeforediscount = count * 99;
    double amountofdiscount = costbeforediscount * discount;
    double finalcost = costbeforediscount - amountofdiscount;
    printf("Your discount is: %.2f\n", amountofdiscount);
    printf("Your total is: %.2f\n", finalcost);

    return 0;
}:q
q
:w New_Homework1
:w!
:wq
:w!