Dividing it into functions

[lazyman]

Here is my code that is kind of like a calculator that takes in the users description and amount and it keeps adding the amount until the user wants to stop.

This is a working code however now I have to divide it into functions. But I'm confused how I would approach that. Any tips would be nice. :D



#include <cstdlib>
#include <iostream>
using namespace std;
struct calc {
char description[20];
float amout;

};


int main ()
{
calc inventory[100];
int count=0;
char rerun;
float total=0;
float subtotal=0;


do
{
cout<<"Please enter the DESCRIPTION: ";
cin>>inventory[count].description;


cout<<"Please enter the Amount: ";
cin>>inventory[count].amout;


subtotal += inventory[count].amout;
cout<<"The subtotal is: "<<subtotal<<endl;

cout<<"Would you like to add more transactions?(N or Y) ";
cin>>rerun;
count++;
}
while (rerun == 'Y' || rerun == 'y');

total += subtotal;
cout<<"The total is: "<<total<<endl;




return 0;

}

[Ch1156]

just make a function

void add()
{
//code
}

then prototype it, and call it when you want to use it.

[lazyman]

I'm trying to divide this code into 3 functions.