제출 #697456

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
697456		Markomafko972	A Huge Tower (CEOI10_tower)	C++14	100 / 100	114 ms	9824 KiB

tower

#include <bits/stdc++.h>
#define X first
#define Y second
#define pb push_back
#define pii pair<int, int>
typedef long long ll;
using namespace std;

const int MOD = 1e9 + 9;
const ll INF = 1e18;
const int OFF = (1 << 20);

int n, d, a;
vector<int> v;

int mul(int x, int y) {
	return (ll)x * (ll)y % MOD;
}

int main () {

	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	cin >> n >> d;
	for (int i = 0; i < n; i++) {
		cin >> a;
		v.push_back(a);
	}
	sort(v.begin(), v.end());
	
	int sol = 1;
	int p = 0;
	for (int i = 1; i < n; i++) {
		while (v[p]+d < v[i]) p++;
		sol = mul(sol, i-p+1);
	}
	
	cout << sol;

	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