puttingittogether

#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <iomanip>
#include <math.h>
using namespace std;

double avg (int countr, int number []) //should average + total be passed in? gets mad when I don't declare total
        {
            int total = 0;
            for (int a = 0; a<10; a++)
            {
                 total = total + number [a];

            }

                cout<<total<<endl;                //this should add the numbers together as it loops
                double answer = double (total)/countr;
                cout<<answer; //average is NOT correct (?)
                return answer;
        }

int main()
{
int i=0;
int countr=0;
int total=0;
char comma = ','; //stops the reading at comma
cout<<"ok"<<endl;

ifstream infile;

char cNum[40]; //40 is size of the array
int number [40];

 //this is NOT working, something is wrong how I am declaring/calling function and variables

cout<<"ok"<<endl;
    ofstream outFile;
cout<<"ok"<<endl;
infile.open ("listOfIntegers.txt", ifstream::in);
if (infile.is_open())
    {
    while (infile.good())
        {
            infile.getline(cNum, 256, ',');
            if (i==0) //first number is the amount of numbers = 0 is the first in an array
            {
                countr = atoi(cNum); //gets it to be an integer
                cout<<countr<<endl;
            }
            else
              {
                  number[i-1] = atoi(cNum);
                    cout<<number[i-1]<<endl;
                  //all other numbers are put into the array number
              }
              i++;
        }
        infile.close();
    }
    else
    {
        cout << "Error opening file";
    }
cout<<"ok"<<endl;
double average = avg (countr, number);
cout<<"ok"<<endl;
    outFile.open("stats.txt");
    if (outFile.is_open())
    {
        for (int j = 0; j<10; j++)
        {
            outFile << setw(5) << "The data set is:" << number [j] << endl; //how to get numbers to output in nice way? output at all?
        }
            outFile << "The average = " << average << endl;
        outFile << endl;
    }
    outFile.close();
return 0;
}