costDiscountGood

#include <iostream>

int main()
{
    enum sumRange { rangeA = 2000, rangeB = 1500, rangeC = 1000 };
    enum discount { A = 10, B = 7, C = 5};

    float haveMoney{ 0 };
    float cost{ 0 };
    int discountPercent{0};


    std::cout << "Enter money sum you have\n";
    std::cin >> haveMoney;

    std::cout << "Enter cost of goods you witsh to buy\n";
    std::cin >> cost;

    if (cost >= rangeA)
    {
        discountPercent = discount::A;
    }
    else if ( cost >= rangeB)
    {
        discountPercent = discount::B;
    }
    else if (cost >= rangeC)
    {
        discountPercent = discount::C;
    }

    cost -= cost * discountPercent / 100.0;

    if (discountPercent)
    {
        std::cout << "Cost with discount is " << cost << '\n';
    }
    else
    {
        std::cout << "Cost WITHOUT discount is " << cost << '\n';
    }

    if (cost > haveMoney)
    {
        std::cout << "Oops! You haven't enough money to pay!\n";
        std::cout << "Find another " << cost - haveMoney << " $$$ and try again!\n";
    }
    else
    {
        std::cout << "You have enough money!\n";
    }

}