Java Guide

Java submissions compile and run as Main.java with class name Main.

Judge Assumptions

• Your source must be valid in a single file named Main.java.
• Entry point must be public static void main(String[] args).
• No file I/O and no network access.
• All supported languages are calibrated for fairness.

Template

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

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedInputStream in = new BufferedInputStream(System.in);
        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
        out.println("OK");
        out.flush();
    }
}