Help with arrays Calculating average c++

I have already written most of the codes. The only thing i am missing is calculating AVERAGE and SUM of the number in .txt file.

numbers in the .txt file are :47
89
65
36
12
25
17
8
62
10
87
62

If anyone can help, it would be much appreciated.

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// This program lets the user enter a filename.
#include <iostream>
#include <string>
#include <fstream>
using namespace std;

int getLowest(const int[], int);
int getHighest(const int[], int);


int main()
{
	ifstream inputFile;
	string filename;
	int number;
	const int ARRAY_SIZE = 12; // Array size
	int numbers[ARRAY_SIZE];    // Array with 100 elements
	int count = 0;
	int lowestNumber, highestNumber , sumNumber=0; 

	// Get the filename from the user.
	cout << "Please enter the name of the file to read numbers for Number Analysis Program:\n";
	cin >> filename;

	// Open the file.
	inputFile.open(filename);

	// If the file successfully opened, process it.
	if (inputFile)
	{
		// Read the numbers from the file and
		// display them.
		while (count < ARRAY_SIZE && inputFile >> numbers[count])
			count++;

		// Close the file.
		inputFile.close();

		// Display the numbers read.
		cout << "The numbers are: ";
		for (int index = 0; index < count; index++)
			cout << numbers[index] << " ";
		cout << endl;


	}
	else
	{
		// Display an error message.
		cout << "Error opening the file.\n";
	}

	for (int i = 0; 1 < ARRAY_SIZE; i++)
	{
		sumNumber += numbers[i];
}
	cout << "The sum of the numbers are: " << sumNumber << endl;
	// Get the lowest test score.
	highestNumber = getHighest(numbers, ARRAY_SIZE);

	lowestNumber = getLowest(numbers, ARRAY_SIZE);




	

	system("pause");
	return 0;
}

int getLowest(const int array[], int size)
{
	int lowest;  // To hold the lowest value

					// Get the first array's first element.
	lowest = array[0];

	// Step through the rest of the array. When a
	// value less than lowest is found, assign it
	// to lowest.
	for (int count = 1; count < size; count++)
	{
		if (array[count] < lowest)
			lowest = array[count];
	}

	cout << "The lowest nuber is " << lowest << endl;

	// Return the lowest value.
	return lowest;
}

int getHighest(const int array[], int size)
{
	int highest;  // To hold the lowest value

					// Get the first array's first element.
	highest = array[0];

	// Step through the rest of the array. When a
	// value less than lowest is found, assign it
	// to lowest.
	for (int count = 1; count < size; count++)
	{
		if (array[count] > highest)
			highest = array[count];
	}

	cout << "The highest nuber is " << highest << endl;

	// Return the lowest value.
	return highest;
}
Hello trazafin,

lines 53 - 56 looks it should do the job in summing the numbers.

After that you could follow line 57 with something like:
cout << "The average of the numbers is: " << sumNumber / ARRAY_SIZE << endl;. This will integer division, so the result will not be accurate just a close integer.

Without testing the rest of the program looks OK.

Hope that helps,

Andy
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