// Helene Martin, CSE 142
// This program takes in a file of section attendance scores and reports grades
// for each student in each section.
// In the data file:
//   -'y' represents 3 points (student went to section and turned in HW)
//   -'n' represents 1 point (student went to section but didn't turn in HW)
//   -'a' represents 0 points (student was absent)
// Each student can get up to 20 section points. 

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

public class Section {
   public static final int SECTION_MAX = 20;
   
   public static void main(String[] args) throws FileNotFoundException {
      Scanner fileScan = new Scanner(new File("sections.txt"));
      PrintStream output = new PrintStream(new File("sections_out.txt"));
      
      int section = 1;
      while (fileScan.hasNextLine()) {
         String line = fileScan.nextLine();
         int[] scores = getScores(line);
         double[] grades = getGrades(scores);        
 
         printResults(output, section, scores, grades);
         // printResults(System.out, section, scores, grades); // to System.out
         
         section++;
      }
   }
   
   // Computes and returns scores for a given section.
   public static int[] getScores(String line) {
      int[] scores = new int[5];
      for (int i = 0; i < line.length(); i++) {
         char current = line.charAt(i);
         
         int student = i % 5;
         if (current == 'y') { // did HW
            scores[student] += 3;
         } else if (current == 'n') { // didn't do HW
            scores[student] += 1;
         }
         
         scores[student] = Math.min(scores[student], SECTION_MAX);
      }
      
      return scores;
   }
   
   // Computes and returns grades out of 100 from the given scores.
   public static double[] getGrades(int[] scores) {
      double[] grades = new double[5];
      for (int i = 0; i < scores.length; i++) {
         grades[i] = 100 * scores[i] / (double)SECTION_MAX;
      } 
      
      return grades;  
   }
   
   // Reports scores and grades to the specified PrintStream.
   public static void printResults(PrintStream out, int section, int[] scores, double[] grades) {         
      out.println("Section " + section);
      out.println(Arrays.toString(scores));
      out.println(Arrays.toString(grades));
      out.println();
   }
}