Submission #1155085

#	Time	Username	Problem	Language	Result	Execution time	Memory
1155085		raphaeltroen	A Huge Tower (CEOI10_tower)	C++20	100 / 100	383 ms	5392 KiB

tower

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

int main() {
    ll n, d;
    cin >> n >> d;
    vector<ll> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    sort(a.begin(), a.end());
    ll ans = 1;
    int j = 0;
    for (int i = 0; i < n; i++) {
        while(a[j]+d<a[i] && j<i){j++;}
        ans = (ans*ll(1 + i-j))%ll(1e9+9);
    }
    cout << ans;
    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