/*
This program reads a file representing which students attended
which discussion sections and produces output of the students'
section attendance and scores.

Each line of the input file represents the data for one section
and has the following format:

111111101011111101001110110110110001110010100

The data is for 5 students across 9 weeks, so you can think of each 
line as being split into 9 groups of 5:

week1 week2 week3 week4 week5 week6 week7 week8 week9
11111 11010 11111 10100 11101 10110 11000 11100 10100

A 1 means a given student attended the section, and a 0 means the student
did not.  Within each group of 5, the first character is the first student's
attendance, the second character is the second student's attendance, and so on.
For example:

week2
student1 student2 student3 student4 student5
1        1        0        1        0


The program produces the following output:

Section #1:
Sections attended: [9, 6, 7, 4, 3]
Student scores: [20, 18, 20, 12, 9]
Student grades: [100.0, 90.0, 100.0, 60.0, 45.0]

Section #2:
Sections attended: [6, 7, 5, 6, 4]
Student scores: [18, 20, 15, 18, 12]
Student grades: [90.0, 100.0, 75.0, 90.0, 60.0]

Section #3:
Sections attended: [5, 6, 5, 7, 6]
Student scores: [15, 18, 15, 20, 18]
Student grades: [75.0, 90.0, 75.0, 100.0, 90.0]
*/

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

public class Sections {
    public static void main(String[] args) throws FileNotFoundException {
        Scanner input = new Scanner(new File("sections.txt"));
        int section = 0;    // used to count sections
        
        while (input.hasNextLine()) {
            // each line represents one section's data, such as
            // "111111101011111101001110110110110001110010100"
            String line = input.nextLine();
            section++;
            System.out.println("Section #" + section + ":");
            
            // count how many sections were attended
            int[] attended = new int[5];
            for (int i = 0; i < line.length(); i++) {
                char c = line.charAt(i);
                // int studentNumber = i % 5;
                if (c == '1') {
                    // the student attended that week's section
                    attended[i % 5]++;
                }
            }
            System.out.println("Sections attended: " + Arrays.toString(attended));
            
            // compute section score out of 20 points
            int[] scores = new int[5];
            for (int i = 0; i < scores.length; i++) {
                scores[i] = Math.min(3 * attended[i], 20);
            }
            System.out.println("Student scores: " + Arrays.toString(scores));
            
            // compute section grade out of 100%
            double[] grades = new double[5];
            for (int i = 0; i < scores.length; i++) {
                grades[i] = 100.0 * scores[i] / 20;
            }
            System.out.println("Student grades: " + Arrays.toString(grades));
            System.out.println();
        }
    }
}