Cod sursa(job #912590)

Utilizator apopeid13Apopeid Alejandro apopeid13 Data 12 martie 2013 16:14:22
Problema Grigo Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.32 kb
Raporteaza aceasta sursa 
#include<fstream>
#define MOD 1000003
using namespace std;
ifstream f("grigo.in");
ofstream g("grigo.out");
int x,n,m,i,sol,a[100100];
int main()
{
    f>>n>>m;
    for(i=1;i<=m;++i)
    f>>x,a[x]=1;
    sol=1;
    for(i=1;i<=n;++i)
    if(!a[i])
    sol=(sol*1LL*(i-1))%MOD;
    g<<sol<<'\n';
    return 0;
}