Submission #531277

#	Time	Username	Problem	Language	Result	Execution time	Memory
531277		sidon	A Huge Tower (CEOI10_tower)	C++17	100 / 100	114 ms	10608 KiB

tower

#include <bits/stdc++.h>
using namespace std;
#define int long long

const int M = 1e9+9;

int32_t main() {
	ios::sync_with_stdio(0), cin.tie(0);

	int N, D, res = 1, j = 0;
	cin >> N >> D;

	int a[N]; for(int &i : a) cin >> i;
	sort(a, a + N);
	
	for(int i = 0; i < N; ++i) {
		while(a[j] + D < a[i]) ++j;
		(res *= i - j + 1) %= M;
	}

	cout << res;
}

• 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