The highlighted part below is where the function located...Is there any problem with the input?

```
#include <iostream>
#include <iomanip>
using namespace std;
// function declaration for price to pay.
float caldiscountprice(float[],int[],float[]); // function declaration for discounted price.
float calpriceafterdiscount(float[],int[],float[]); //function declaration for Price after Discount
int main()
{
int stocknumber[5],quantity[5],count=1,backwardcount=2,i;
float price[5],discount[5],discountprice[5],priceafterdiscount[5];
cout.setf (ios::fixed);
cout.setf (ios::showpoint);
cout.precision (2);
for (i=0;i<5;i++)
{
while (count<=3)
{
cout<<"Please enter the stock number."<<endl;
cin>>stocknumber[i];
if ((stocknumber[i]>=1) && (stocknumber[i]<=9999))
break;
if ((stocknumber[i]<=0) || (stocknumber[i]>=10000))
cout<<"The number you entered is invalid. Please reenter another stock number."<<endl;
cout<<"You have"<<setw(2)<<backwardcount<<setw(2)<<" chance(s) left"<<endl;
backwardcount--;
count++;
}
if (count==4)
{
cout<<"Sorry, you have exceeded 3 times of input."<<endl;
cout<<"Please restart the program or contact us for further services."<<endl;
exit(1);
}
}
for (i=0;i<5;i++)
{
cout<<"Please insert the price of the product."<<endl;
cin>>price[i];
cout<<"Please enter the quantity."<<endl;
cin>>quantity[i];
}
for (i=0;i<5;i++)
{
if ((stocknumber[i]>=1) && (stocknumber[i]<=3000))
discount[i]=0;
else if ((stocknumber[i]>=3001) && (stocknumber[i]<=5000))
discount[i]=float(10)/100;
else if ((stocknumber[i]>=5001) && (stocknumber[i]<=8000))
discount[i]=float(15)/100;
else if ((stocknumber[i]>=8001) && (stocknumber[i]<=9999))
discount[i]=float(20)/100;
}
for (i=0;i<5;i++)
{
discountprice[i]=caldiscountprice (discount,quantity,price);
priceafterdiscount[i]=calpriceafterdiscount(price, quantity,discountprice);
}
for (i=0;i<5;i++)
{
cout<<endl;
cout<<endl;
cout<<"Invoice"<<endl;
cout<<"============"<<endl;
cout<<"Stock no:"<<stocknumber[i]<<endl;
cout<<"Quantity:"<<quantity[i]<<endl;
cout<<"Price per unit:"<<price[i]<<endl;
cout<<"Discount given:"<<discountprice[i]<<endl;
cout<<"Discounted Price:"<<priceafterdiscount[i]<<endl;
}
return 0;
}
float caldiscountprice (float discount[5],int quantity[5], float price[5])
{
int i,stocknumber[5];
float discountprice[5];
for (i=0;i<5;i++)
{
if ((stocknumber[i]>=1) && (stocknumber[i]<=3000))
discount[i]=0;
else if ((stocknumber[i]>=3001) && (stocknumber[i]<=5000))
discount[i]=float(10)/100;
else if ((stocknumber[i]>=5001) && (stocknumber[i]<=8000))
discount[i]=float(15)/100;
else if ((stocknumber[i]>=8001) && (stocknumber[i]<=9999))
discount[i]=float(20)/100;
}
discountprice[i]=discount[i]*quantity[i]*price[i];
return discountprice[i];
}
float calpriceafterdiscount(float price[5],int quantity[5], float discountprice[5])
{
int i;
float priceafterdiscount[5];
for (i=0;i<5;i++)
priceafterdiscount[i]=quantity[i]*price[i]-discountprice[i];
return priceafterdiscount[i];
}
```