import java.io.*;
import java.util.*;
public class tower {
static int mod = 1000000009;
public static void main(String[]args) throws IOException{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer(br.readLine());
int N = Integer.parseInt(st.nextToken());
int D = Integer.parseInt(st.nextToken());
st = new StringTokenizer(br.readLine());
int[]blocks = new int[N];
for(int i = 0; i<N; i++) {
blocks[i] = Integer.parseInt(st.nextToken());
}
Arrays.sort(blocks);
int[]stack = new int[N];
int j = 0;
for(int i = 0; i<N; i++) {
while(j<N && blocks[j]-blocks[i]<=D) j++;
stack[i] = j-i;
}
long ans = 1;
for(int i = 0; i<N; i++) {
ans = (stack[i]*ans)%mod;
}
System.out.println(ans);
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
70 ms |
8556 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
89 ms |
8880 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
77 ms |
8484 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
73 ms |
8492 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
71 ms |
8532 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
80 ms |
8668 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
76 ms |
8520 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
82 ms |
8684 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
86 ms |
8528 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
80 ms |
8640 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
77 ms |
8424 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
73 ms |
8556 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
95 ms |
8548 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
81 ms |
8504 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
114 ms |
9684 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
331 ms |
17248 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
473 ms |
19304 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
924 ms |
23768 KB |
Output is correct |
2 |
Correct |
767 ms |
23840 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
624 ms |
32732 KB |
Output is correct |
2 |
Correct |
675 ms |
35136 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
769 ms |
44688 KB |
Output is correct |
2 |
Correct |
750 ms |
49676 KB |
Output is correct |