Cod sursa(job #2008656)

Utilizator Mircea_DonciuDonciu Mircea Mircea_Donciu Data 7 august 2017 11:05:15
Problema Grigo Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.36 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;


bool v[100001];
int x,n,m,i;
long long s=1;
int main()
{
    ifstream f("grigo.in");
    ofstream g("grigo.out");
    s=1;
    f>>n>>m;
    for(i=1;i<=m;++i)
    {
        f>>x;
        v[x]=1;
    }
    for(i=1;i<=n;++i)
        if(!v[i])
            s=(s*(i-1))%1000003;
    g<<s;
    return 0;
}