Cod sursa(job #1975292)

Utilizator usureluflorianUsurelu Florian-Robert usureluflorian Data 30 aprilie 2017 14:21:13
Problema Grigo Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream f ("grigo.in");
ofstream g ("grigo.out");
int n,m,a,nr=1;
bool ok[1000001];
int main()
{
    f>>n>>m;
    for(int i=1;i<=m;++i)
    {
        f>>a;
        ok[a]=1;
    }
    for(int i=1;i<=n;++i) if(!ok[i]) nr=(1LL*(i - 1)*nr)%1000003;
    g<<nr;
    return 0;
}