A push in the right direction..

[CharlieMurphy]

Alright, i'm quite new to c++ and having some trouble with an assignment. Just looking for any advice or a push in the right direction. I'm quite confused about outputting the function data to the output file, as well as the array portion of everything. The assignment is:

Write a program that uses a structure to store and then process the following data on a
Hubbly’s company division :
Division ( East , West , North , South )
Quarter ( 1 , 2 , 3 , 4 )
Quarterly Sale.
The program should have an array of 16 structures to hold the data for the company.
When the program suns, it should perform the following tasks :
1. Load the data from the CompanySales.txt file. This process is done in the
main Program.
2. From main, Call a function to calculate and print the total corporate
sales for each quarter. You must pass the structure and the array to the
function.
3. From main , Call a function to calculate and print the yearly sales for
each division. You must pass the structure and the array to the function.
4. From main , Call a function to calculate and print the minimum and
maximum yearly sales. You must pass the structure and the array to the
function.
5. From main , Call a function to calculate and print the yearly corporate
sales. You must pass the structure and the array to the function.



So far I have:

#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
using namespace std;

	struct companyData
	{
		string region;
		int regionNumber;
		int salesNumber;
	};

	void quarterOutput(companyData);
	void regionOutput(companyData);
	void minimumMaximum(companyData);
	void yearlySale(companyData);



int main()
{
	ifstream fin;
	ofstream fout;

	fin.open("companySales.txt");
	fout.open("salesOut.txt");
	
	int arrayData [10];

	companyData files;
	quarterOutput(files);
	regionOutput(files);
	minimumMaximum(files);
	yearlySale(files);

	fin.close();
	fout.close();

	return 0;
}

void quarterOutput(companyData file)
{

	cout << "Total Sale for Quarter 1 is: " << endl;
	cout << "Total Sale for Quarter 2 is: " << endl;
	cout << "Total Sale for Quarter 3 is: " << endl;
	cout << "Total Sale for Quarter 4 is: " << endl;
	cout << endl;
}

void regionOutput(companyData file)
{


	cout << "Total Sale for East is: " << endl;
	cout << "Total Sale for West is: " << endl;
	cout << "Total Sale for North is: " << endl;
	cout << "Total Sale for South is: " << endl;
	cout << endl;
}

void minimumMaximum(companyData file)
{

	cout << "Minimum Sales happened in the " << endl;
	cout << "Maximum Sales happened in the " << endl;
	cout << endl;
}

void yearlySale(companyData file)
{

	cout << "The Yearly Corporate Sale is " << endl;
}

Thanks in advance for anything.