package dancinggooglers;

import java.io.File;
import java.util.Scanner;

public class DanceScoreCalculator {


    public static void main(String[] args) {
        if(args.length <= 0 || args[0] == null) {
            System.out.println("You must enter a file to read");
            System.out.println("Usage: blah <filename>");
            System.exit(0);
        }

        File argFile = new File(args[0]);
        try {
            Scanner googleSpeakScanner = new Scanner(argFile);
            String firstLine = googleSpeakScanner.nextLine();
            Integer linesToScan = new Integer(firstLine);
            for(int i = 1; i <= linesToScan; i++) {
                String googleDancerLine = googleSpeakScanner.nextLine();
                DanceScoreCase danceCase = new DanceScoreCase(googleDancerLine);
                System.out.println(String.format("Case #%d: %d", i, danceCase.maxDancersThatCouldPass()));
            }
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package codejam.common;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public abstract class AbstractProblemSolver<P, S> {

	public void solve(File input, File output) {
		try (BufferedReader reader = new BufferedReader(new FileReader(input));
				BufferedWriter writer = new BufferedWriter(new FileWriter(
						output))) {
			String line = reader.readLine();
			int numberCases = Integer.parseInt(line);
			for (int i = 1; i <= numberCases; i++) {
				P problem = readProblem(reader);
				S solution = solveProblem(problem);
				writeSolution(i, solution, writer);
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public abstract P readProblem(BufferedReader reader) throws IOException;

	public abstract S solveProblem(P problem);

	public abstract void writeSolution(int solutionNumber, S solution,
			BufferedWriter writer) throws IOException;

}
