Submission

PPPPPPPPPP

Score: 100

User: chawinkn

Problemset: H.Weird Ping-pong

Language: cpp

Time: 0.389 second

Submitted On: 2024-10-14 22:01:19

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

#define ll long long
const ll M = 1e9+7;

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