#include <iostream>

// The unit price of a microcontroller depends on the
// number purchased:
//
//   - If fewer than 10 are purchased, the unit price
//     is $12.75.
//
//   - If between 10 and 99 are purchased, inclusive,
//     the unit price is $10.15.
//
//   - If 100 or more are purchased, the unit price
//     is $9.75.
//
// Write a program that asks the user for the number of
// microcontrollers being purchased and calculates the
// total cost.
//
// Perform all calculations using integer numbers of
// cents rather than dollars. When displaying the result,
// however, print the total cost in dollars and cents.
//
// For example, a total cost of 12345 cents should be
// displayed as
//
//     $123.45
//
// If the user enters a negative number of
// microcontrollers, immediately terminate the program
// by returning 0 from main().

// Function declarations
int main();

// Function definitions
int main() {
    return 0;
}











































































// Here is one solution:

/*
int main() {
    int amount_sold{};

    std::cout << "Enter the number of microcontrollers sold: ";
    std::cin >> amount_sold;

    if ( amount_sold < 0 ) {
        return 0;
    }

    // Calculate the total cost in cents.

    int total_cost{};

    if ( amount_sold < 10 ) {
        total_cost = 1275*amount_sold;
    } else if ( amount_sold < 100 ) {
        total_cost = 1015*amount_sold;
    } else {
        total_cost = 975*amount_sold;
    }

    // Integer division by 100 gives the number of
    // whole dollars.

    std::cout << "The total cost is $"
              << (total_cost/100) << ".";

    // The remainder after division by 100 gives the
    // number of cents.

    total_cost %= 100;

    // Exactly two digits must be printed for the cents.

    if ( total_cost == 0 ) {
        std::cout << "00" << std::endl;
    } else if ( total_cost < 10 ) {
        std::cout << "0" << total_cost << std::endl;
    } else {
        std::cout << total_cost << std::endl;
    }

    return 0;
}
*/