Submission #927540

#	Time	Username	Problem	Language	Result	Execution time	Memory
927540		ay136416	A Huge Tower (CEOI10_tower)	Java	100 / 100	518 ms	94500 KiB

tower

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
public class tower {
    final static long MOD = 1_000_000_009;
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] tokens = br.readLine().split(" ");
        final int N = Integer.parseInt(tokens[0]);
        final int D = Integer.parseInt(tokens[1]);
        int[] blocks = new int[N];
        tokens = br.readLine().split(" ");
        for (int i = 0; i<N; i++) {
            blocks[i]=Integer.parseInt(tokens[i]);
        }
        Arrays.sort(blocks);
        long ans = 1;
        int right = 0;
        for (int left = 0; left<N; left++) {
            while (right<N-1 && blocks[right+1]-blocks[left]<=D) 
                right++;
            ans *= (right-left+1);
            ans %= MOD;
        }
        System.out.println(ans);
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 5 / 5
• Subtask 8: 5 / 5
• Subtask 9: 5 / 5
• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
• Subtask 12: 5 / 5
• Subtask 13: 5 / 5
• Subtask 14: 5 / 5
• Subtask 15: 5 / 5
• Subtask 16: 5 / 5
• Subtask 17: 5 / 5
• Subtask 18: 5 / 5
• Subtask 19: 5 / 5
• Subtask 20: 5 / 5