write a program that declares three one dimensional arrays named price,quantity, and amount. each array should be declared in main() and be capable of holding 10 double-precision numbers. the numbers to be stored in price are 10.62, 14.89, 13.21, 16.55, 18.62, 9.47, 6.58, 18.32, 12.15, and 3.98. the numbers to be stored in quantity are 4, 8.5, 6, 7.35, 9, 15.3, 3, 5.4, 2.9, and 4.8. have your program pass these three arrays to a function called extend(), which calculates the elements in the amount array as the product of the equivalent elements in the price and quantity arrays: for example, amount[1] = price[1] * price[1].
#include <iostream>
using namespace std;
void extend(double *price, double *quantity, double *amount);
int main()
{
double price[10] = {10.62, 14.89, 13.21, 16.55, 18.62, 9.47, 6.58, 18.32, 12.15, 3.98};
double quantity[10] = {4, 8.5, 6, 7.35, 9, 15.3, 3, 5.4, 2.9, 4.8};
double amount[10];
extend(price, quantity, amount);
cout << "Amount [0] = " << amount[0] << endl << "Amount [1] = " << amount[1] << endl;
cout << "Amount [2] = " << amount[2] << endl << "Amount [3] = " << amount[3] << endl;
cout << "Amount [4] = " << amount[4] << endl << "Amount [5] = " << amount[5] << endl;
cout << "Amount [6] = " << amount[6] << endl << "Amount [7] = " << amount[7] << endl;
cout << "Amount [8] = " << amount[8] << endl << "Amount [9] = " << amount[9] << endl;
system ("PAUSE");
return 0;
}
void extend(double *price, double *quantity, double *amount)
{
amount[0] = price[0] * quantity[0];
amount[1] = price[1] * quantity[1];
amount[2] = price[2] * quantity[2];
amount[3] = price[3] * quantity[3];
amount[4] = price[4] * quantity[4];
amount[5] = price[5] * quantity[5];
amount[6] = price[6] * quantity[6];
amount[7] = price[7] * quantity[7];
amount[8] = price[8] * quantity[8];
amount[9] = price[9] * quantity[9];
}i came up with this program but my teacher said that i need to use pointers and i need to use loopings to compute for the amount. and i will show the answers in main(). how can i do that? can someone help me?
