#include <stdio.h>
#define SIZE 10
void extend(double[], double[], double[]);
int main()
{
    
	double price[SIZE]={10.62,14.89,13.21,16.55,18.62,9.47,6.58,18.32,12.15,4.8};
	double quantity[SIZE]={4,8.5,6,8.35,9,15.3,3,5.4,2.8,4.8};
	double amount[SIZE];
	
	extend(price, quantity, amount);
	return 0;
}
void extend(double price[SIZE], double quantity [SIZE], double amount[SIZE])
{
}