Add the following the program. 1. Write a function named getTopThree() 2. Call the function getTopThree () 3. In the function getTopThree (), find the top three highest sales numbers and display those Product and sales numbers 4. Write a function named getBottomThree() 5. Call the function getBottomThree () 6. In the function getBottomThree (), find the bottom three lowest sales numbers and display those Product and sales numbers

// This program produces a sales report for DLC, Inc. #include #include using namespace std;

// Function prototypes void calcSales(const int [], const double [], double [], int); void showOrder(const double [], const int [], int); void dualSort(int [], double [], int); void showTotals(const double [], const int [], int);

// NUM_PRODS is the number of products produced. const int NUM_PRODS = 9;

int main() { // Array with product ID numbers int id[NUM_PRODS] = {914, 915, 916, 917, 918, 919, 920, 921, 922}; // Array with number of units sold for each product int units[NUM_PRODS] = {842, 416, 127, 514, 437, 269, 97, 492, 212}; // Array with product prices double prices[NUM_PRODS] = {12.95, 14.95, 18.95, 16.95, 21.95, 31.95, 14.95, 14.95, 16.95};

// Array to hold the computed sales amounts double sales[NUM_PRODS]; // Calculate each product's sales. calcSales(units, prices, sales, NUM_PRODS); // Sort the elements in the sales array in descending // order and shuffle the ID numbers in the id array to // kepp them in parallel. dualSort(id, sales, NUM_PRODS); // Set the numeric output formatting. cout << setprecision(2) << fixed << showpoint; // Display the products and sales amounts. showOrder(sales, id, NUM_PRODS); // Display total units sold and total sales. showTotals(sales, units, NUM_PRODS); return 0; }

/*************************************************************** // Definition of calcSales. Accepts units, prices, and sales * // arrays as arguments. The size of these arrays is passed * // into the num parameter. This function calculates each * // product's sales by multiplying its units sold by each unit's * //price. The result is stored in the sales array. * //***************************************************************

void calcSales(const int units[], const double prices[], double sales[], int num) { for (int index = 0; index < num; index++) sales[index] = units[index] * prices[index]; }

//*************************************************************** // Definition of function dualSort. Accepts id and sales arrays * // as arguments. The size of these arrays is passed into size. * // This function performs a descending order selection sort on * // the sales array. The elements of the id array are exchanged * // identically as those of the sales array. size is the number * // of elements in each array. * //***************************************************************

void dualShort(int id[], double sales[], int size) { int startScan, maxIndex, tempid; double maxValue; for (startScan = 0; startScan < (size - 1); startScan++) { maxIndex = startScan; maxValue = sales[startScan]; tempid = id[startScan]; for (int index = startScan + 1; index < size; index++) { if (sales[index] > maxValue) { maxValue = sales[index]; tempid = id[index]; maxIndex = index; } }

sales[maxIndex] = sales[startScan]; id[maxIndex] = id[startScan]; sales[startScan] = maxValue; id[startScan] = tempid; } }

//*************************************************************** // Definition of showOrder function. Accepts sales and id arrays* // as arguments. The size of these arrays is passed into num. * // The function first displays a heading, then the sorted list * // of product numbers and sales. * //***************************************************************

void showOrder(const double sales[], const int id[], int num) { cout << "Product Number\tSales "; cout <<"---------------------------------- "; for (int index = 0; index < num; index++) { cout << id[index] << "\t\t$"; cout << setw(8) << sales[index] << endl; } cout << endl; }

//***************************************************************** // Definition of showTotals function. Accepts sales and id arrays * // as arguments. The size of these arrays is passed into num. * // The function first calculates the total units (of all * // products) sold and the total sales. It then displays these * // amounts. * //*****************************************************************

void showTotals(const double sales[], const int units[], int num) { int totalUnits = 0; double totalSales = 0.0; for (int index = 0; index < num; index++) { totalUnits += units[index]; totalSales += sales[index]; } cout << "Total Units Sold: " << totalUnits << endl; cout << "Total Sales: $" << totalSales << endl; }