Submission #934813

#	Time	Username	Problem	Language	Result	Execution time	Memory
934813		jeli26	A Huge Tower (CEOI10_tower)	Java	Compilation error	0 ms	0 KiB

tower

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

public class Main {

	static int MAX = 1000000009;

	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		
		StringTokenizer st = new StringTokenizer(in.readLine());
		int n = Integer.parseInt(st.nextToken());
		int m = Integer.parseInt(st.nextToken());

		int[] blocks = new int[n];
		st = new StringTokenizer(in.readLine());
		for(int i = 0; i < n; i++) {
			blocks[i] = Integer.parseInt(st.nextToken());
		}

		Arrays.sort(blocks);

		int ans = 1;
		int r = 1;
		for(int l = 0; l < n; l++) {
			while(r < n && blocks[r] - blocks[l] <= m) {
				r++;
			}

			int mult = Math.max((r - l) % MAX, 1);
			ans = ((ans * r % MAX) - (ans * l % MAX)) % MAX;
		}

		System.out.println(ans);
	}
}

Compilation message (stderr)

tower.java:4: error: class Main is public, should be declared in a file named Main.java
public class Main {
       ^
1 error