Submission

Status:

PPPPPPPPPP

Score: 100

User: kaomankai

Problemset: H.Weird Ping-pong

Language: cpp

Time: 0.190 second

Submitted On: 2024-10-15 21:15:28

#include<bits/stdc++.h>
using namespace std;
long long m=1e9+7;
int a[1000005];
int main(){

    int n;
    long long t=1;
    scanf("%d",&n);
    for(int i=1;i<=n;i++){
        scanf("%d",&a[i]);
    }
    sort(a+1,a+n+1);
    for(int i=1;i<=n;i++){

        t=t*(a[i]-i+1);
        t=t%m;
    }
    printf("%lld",t);



}