/** 10/29/2018
  * Problem: Read in a set of grades
  * 1. calculate average
  * 2. Find max
  * 3. Find min
  * 4. Count number of grades greater than the average.
  * This version is Solution 1. We use a single variable to keep
  * reading in the next value. This is easily done in a LOOP.
  * Advantage: programming scales up and is easier
  * Disadvantage: data is not here to solve part 4 of the problem.
  */
import java.io.*;
import java.util.Scanner;

public class Grades
{  
  public static void main(String[]  args) throws IOException {
    
    Scanner infile = new Scanner(new File("grades.txt"));
    // Read in data (which is a header value followed by #s)
    int num = infile.nextInt();
    double grade, sum=0.0;
    // initialize max to first data element
    double max = infile.nextDouble();
    double min = max; // initialize max and min to first value
    int higherAvg=0;
    // Keep a running sum to calculate the average
    for (int i=0; i<num-1; i++)  {
      grade = infile.nextDouble();
      System.out.print(grade + " ");
      sum+=grade;
      if (grade > max)
        max = grade;
      System.out.println("i=" + i + " running max is: " + max);
      if (grade < min)
        min = grade;
      // how many grades are higher than average
//      if (grade > average)
  //      higherAvg++;
    }
    double average = sum/num;
    System.out.println("\naverage: " + average + " max: " + max
                      + " min: " + min);
    
 }
}