Cod sursa(job #657442)

Utilizator SchullerClaudiuSchuller Claudiu SchullerClaudiu Data 6 ianuarie 2012 16:53:49
Problema Grigo Scor 100
Compilator cpp Status done
Runda winners7.1 Marime 0.31 kb
#include<fstream>
using namespace std;
long long N, M , i, x, P=1;
bool a[1000001];
int main()
{
ifstream f("grigo.in");
ofstream g("grigo.out");
f>>N>>M;
for(i=1;i<=M;i++)
{   
f>>x;
a[x]=1;
}
f.close();
for(i=0;i<N;i++)
if(a[i+1]==0)
P=P*(i)%1000003;
g<<P<<"\n";
g.close();
return 0;
}