/*
Jessica Miller, CSE 142, Autumn 2010
This program processes section attendance information that is stored in a 
text file.  It counts the number of attendance points for five students 
in three different sections and reports their grades.
*/

import java.io.*;
import java.util.*;

public class Sections {
    public static void main(String[] args) throws FileNotFoundException {
        // Section 1
        // Student points: [20, 17, 19, 16, 13]
        // Student grades: [100.0, 85.0, 95.0, 80.0, 65.0]
		
        // box     012340123401234012340123401234012340123401234
        // index   012345678901234567890123456789012345678901234
        // line = "yynyyynayayynyyyayanyyyaynayyayyanayyyanyayna"	
		
		Scanner input = new Scanner(new File("sections.txt"));
		int sectionNumber = 1;
		
		while (input.hasNextLine()) {
			String section = input.nextLine();
			int[] points = processSection(section);
			double[] grades = calculateGrades(points);
			reportResults(sectionNumber, points, grades);
			sectionNumber++;
		}
	}
	
	public static int[] processSection(String section) {
		int[] points = new int[5];
		
		for (int i = 0; i < section.length(); i++) {
			char c = section.charAt(i);
			
			if (c == 'y') {
				// give student 3 points
				points[i % 5] = Math.min(points[i % 5] + 3, 20);
			} else if (c == 'n') {
				// give student 2 points
				points[i % 5] = Math.min(points[i % 5] + 2, 20);
			}
		}	
		
		return points;
	}
	
	public static double[] calculateGrades(int[] points) {
		double[] grades = new double[5];
		for (int i = 0; i < points.length; i++) {
			grades[i] = points[i] * 100.0 / 20;
		}
		return grades;
	}
	
	public static void reportResults(int sectionNumber, int[] points, double[] grades) {
		System.out.println("Section " + sectionNumber);
		System.out.println("Student points: " + Arrays.toString(points));
		System.out.println("Student grades: " + Arrays.toString(grades));	
	}
}