Submission #1352203

#	Time	Username	Problem	Language	Result	Execution time	Memory
1352203		kantaponz	A Huge Tower (CEOI10_tower)	C++20	100 / 100	70 ms	5188 KiB

tower

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

#define ll long long

const ll mod = 1e9 + 9;

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n;
    ll d;
    cin >> n >> d;
    vector<ll> v(n);
    ll ans = 1;
    ll l = 0;
    for (auto &x : v) cin >> x;
    sort(v.begin(), v.end());
    for (ll i = 0; i < n; i++) {
        while (v[i] - v[l] > d) l++;
        ans = (ans * (i - l + 1)) % mod;
    }
    cout << ans;
}

• 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