Submission #1986294

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Source Code Expand

#include<iostream>
#include<string>
#include<vector>
#include<math.h>
#include<map>
#include<algorithm>
#define rep(i,N) for(int i=0;i<(N);i++)
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
using namespace std;
string table[]={"dream","dreamer","erase","eraser"};
string s;
const long long MOD = 1e9 + 7;
bool f[100100];
int main(void){
    long long n,a=1;
    cin>>n;
    rep(i,n){
        a=a*(i+1)%MOD;
    }
    cout<<a<<endl;
    return 0;
}

Submission Info

Judge Result