Submission #1262827

#	Time	Username	Problem	Language	Result	Execution time	Memory
1262827		farbodchr	A Huge Tower (CEOI10_tower)	C++20	30 / 100	180 ms	2736 KiB

tower

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int mod = 1e9 + 9;

int n, d, ans = 1;
int a[1000010];

int main() {
    cin >> n >> d;
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(a, a + n);

    for (int i = 0; i < n; i++) {
        int x = lower_bound(a, a + n, a[i] - d) - a;
        ans *= (i + 1LL - x) % mod;
    }

    cout << ans << "\n";
    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