제출 #394153

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
394153		aaronhma	A Huge Tower (CEOI10_tower)	C++17	100 / 100	129 ms	5068 KiB

tower

#include <bits/stdc++.h>

using namespace std;

#define MOD 1000000009
#define ll long long

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);

  ll n, d, j = 0, ans = 1;
  cin >> n >> d;

  vector<ll> arr(n);
  
  for (int i = 0; i < n; i++)
    cin >> arr[i];

sort(arr.begin(), arr.end());
  
  for (int i = 0; i < n; i++) {
	  while (j < n && arr[j] - arr[i] <= d) j++;
	  ans *= j - i;
	  ans %= MOD;
  }

  cout << ans << "\n";
}

• 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