Cod sursa(job #208590)

Utilizator vlad_DVlad Dumitriu vlad_D Data 17 septembrie 2008 11:08:53
Problema Grigo Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.21 kb
Raporteaza aceasta sursa 
#include <iostream.h>
long long v[1<<17],N,M,x,r=1,i;int main(){freopen("grigo.in","r",stdin);freopen("grigo.out","w",stdout);cin>>N>>M;while(cin>>x)v[x]=1;for(;N--;++i)if(!v[i+1])r=r*i%1000003;cout<<r;return 0;}