Template for writing ACM ICPC solutions in Java

Icpc.java

import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;

public class Icpc {

	public static void main(String... args) throws Exception {
		FastScan sc = new FastScan(new BufferedReader(new InputStreamReader(System.in)));
		PrintWriter pw = new PrintWriter(System.out);

		

		sc.close();
		pw.close();
		System.exit(0);
	}

	static class FastScan implements Closeable {
		private BufferedReader br;
		private StringTokenizer tk;

		public FastScan(BufferedReader br) {
			this.br = br;
		}

		public int in() throws NumberFormatException, IOException {
			return Integer.parseInt(next());
		}

		public long ln() throws NumberFormatException, IOException {
			return Long.parseLong(next());
		}

		public double db() throws NumberFormatException, IOException {
			return Double.parseDouble(next());
		}

		@Override
		public void close() throws IOException {
			tk = null;
			br.close();
		}

		public String next() throws IOException {
			while (tk == null || !tk.hasMoreTokens()) {
				String line = br.readLine();
				if (line == null)
					return null;
				tk = new StringTokenizer(line);
			}
			return tk.nextToken();
		}
	}
}