Submission #1103108

#	Time	Username	Problem	Language	Result	Execution time	Memory
1103108		zephyrion	A Huge Tower (CEOI10_tower)	C++17	30 / 100	85 ms	6780 KiB

tower

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int mod = 1e9 + 9;
const int max_n = 1e7;
int n, d, arr[max_n], res = 1;
signed main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);
	cin >> n >> d;
	for (int i = 0; i < n; i++) {
		cin >> arr[i];
	}
	int res = 1;
	sort(arr, arr + n);
	for (int l = 0, r = 0; l < n; l++){
	    for (; r < n && arr[r] - arr[l] <= d; r++){
            res *= (r - l + 1) % mod;
        }
	}
    cout << res << endl;
	return 0;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 5 / 5
• Subtask 11: 5 / 5
• Subtask 12: 0 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5
• Subtask 15: 0 / 5
• Subtask 16: 0 / 5
• Subtask 17: 0 / 5
• Subtask 18: 0 / 5
• Subtask 19: 0 / 5
• Subtask 20: 0 / 5