Submission #1086372

#	Time	Username	Problem	Language	Result	Execution time	Memory
1086372		juicy	A Huge Tower (CEOI10_tower)	C++17	100 / 100	84 ms	8784 KiB

tower

#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

int main() {
  ios::sync_with_stdio(false); cin.tie(nullptr);

  const int M = 1e9 + 9;

  int n, d; cin >> n >> d;
  vector<int> a(n);
  for (int &x : a) {
    cin >> x;
  }
  sort(a.begin(), a.end());
  int res = 1;
  for (int i = 0, j = 0; i < n; ++i) {
    while (a[i] - a[j] > d) {
      ++j;
    }
    res = (long long) res * (i - j + 1) % M;
  }
  cout << res;
  return 0;
}

• 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