Submission #928190

#	Time	Username	Problem	Language	Result	Execution time	Memory
928190		crystal	A Huge Tower (CEOI10_tower)	Java	100 / 100	929 ms	48684 KiB

tower

import java.util.*;

public class tower {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		long mod =1000000009;
		int n = sc.nextInt();
		int m = sc.nextInt();
		int [] vals = new int [n];
		for(int i =0;i<n;i++) {
			vals[i]=sc.nextInt();
		}
		Arrays.sort(vals);
		int r=0;
		long ans =1;
		for(int i=0;i<n;i++) {
			while(r+1<n&&vals[r+1]-vals[i]<=m) {
				r++;
			}
			ans=ans*((long)r-i+1)%mod;
			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