uva400 java

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

public class Main {

    public static void main(String[] args) {
        solution(System.in, new MyPrinter());
    }

    public static void solution(InputStream in, Printer p) {
        Scanner scanner = new Scanner(in);
        while (scanner.hasNextLine()) {
            int count = scanner.nextInt();
            scanner.nextLine();
            ArrayList files = new ArrayList<>();
            int maxLength = 0;
            for (int i = 0; i < count; i ++) {
                String line = scanner.nextLine();
                files.add(line);
                if (line.length() > maxLength) {
                    maxLength = line.length();
                }
            }
            Collections.sort(files);

            int col = 1, totalWidth = maxLength;
            while (totalWidth <= 60) {
                col ++;
                totalWidth += 2 + maxLength;
            }
            col --;

            int fileCount = files.size(), row = fileCount / col;
            if (fileCount % col != 0) {
                row ++;
            }
            p.pn(getDashes(60));
            for (int i = 0; i < row; i ++) {
                for (int j = 0; j < col && j * row + i < fileCount; j ++) {
                    String f = files.get(j * row + i);
                    p.p(f);
                    if ((j + 1) * row + i >= fileCount) {
                        p.pn(getSpace(maxLength - f.length()));
                    } else {
                        p.p(getSpace(maxLength - f.length() + 2));
                    }
                }
            }

        }

    }

    private static String getSpace(int count) {
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < count; i ++) {
            builder.append(" ");
        }
        return builder.toString();
    }

    private static String getDashes(int count) {
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < count; i ++) {
            builder.append("-");
        }
        return builder.toString();
    }

}

interface Printer {
    void p(Object... o);

    void pn(Object... o);

    default String format(Object... o) {
        String format;
        if (o.length == 1) {
            format = o[0].toString();
        } else {
            Object[] dest = new Object[o.length - 1];
            System.arraycopy(o, 1, dest, 0, dest.length);
            format = String.format(o[0].toString(), dest);
        }
        return format;
    }
}

class MyPrinter implements Printer {
    @Override
    public void p(Object... o) {
        System.out.print(format(o));
    }

    @Override
    public void pn(Object... o) {
        if ("true".equals(System.getenv("OUTPUT_TO_LOCAL"))){
            try {
                if (o.length != 0) {
                    writer.write(format(o));
                }
                writer.write("n");
                writer.flush();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (o == null || o.length == 0) {
            System.out.println();
        } else {
            System.out.println(format(o));
        }
    }

    private static FileWriter writer;
    static {
        try {
            writer = new FileWriter("D:\output.txt");
            writer.write("");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}