/*Andrew Gonzalez
 * Lab 4
 * This program computes the average of data sets and to total average for all the inputs.*/

 #include <iostream>
 using namespace std;

int main()
{
    /*Variable declarations*/
    int flag = 1;
    int size, repititions;
    double highestAvg = 0;
    double lowestAvg = 0;
    double number, runningTotal, average, finalAverage;

    /*while true loop keeps running thorugh the process as long as there are more averages to compute*/
    while(true){

        /*do while loop to take in user input for size of each data set*/
        do{
            cout << "Please enter the size of the data set (1-10 elements or 0 to quit): ";
            cin >> size;
            if(size < 0 || size > 10)
                cout << endl;
        }while(size < 0 || size > 10);

        /*If statement to break out of the while true when the condition is met*/
        if(size == 0) break;

        /*cin in the data for the current set*/
        cout << "Please enter your data: ";
        for(int i = 0; i < size; i++){
            cin >> number;
            runningTotal += number;
        }

        /*compute the average for current data set*/
        average = runningTotal / size;

        /*if the average is a higher or lower than the current max or min average, replace with the new extreme
         * if it is the first time iterating through the program, the flag will place the current value into the the low and high*/
        if(flag == 1) {
            lowestAvg = average;
            highestAvg = average;
            flag = 2;
        }
        if(average < lowestAvg)
            lowestAvg = average;
        if(average > highestAvg)
            highestAvg = average;

        /*adds the average into the total in preparation for the final
         * also adds one to the number of times the while loop has occurred*/
        finalAverage += average;
        repititions++;

        /*Setting precision to 3 decimal places*/
        cout.setf(ios::fixed);
        cout.precision(3);

        /*output the average for that set of current data.
         * reset the average and the runningTotal variables for the next iteration*/
        cout << "\naverage = " << average << "\n\n";
        average = 0;
        runningTotal = 0;
    }

    /*compute the final average without the highest and lowest averages*/
    finalAverage = finalAverage - highestAvg - lowestAvg;
    repititions = repititions - 2;
    finalAverage = finalAverage / repititions;

    /*output the final average*/
    cout << "\nfinal average = " << finalAverage;

    return 0;
}