Cod sursa(job #226334)

Utilizator free2infiltrateNezbeda Harald free2infiltrate Data 1 decembrie 2008 15:13:10
Problema Grigo Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.3 kb
Raporteaza aceasta sursa 
#include <stdio.h>

char A[100001];

int main()
{
FILE *in = fopen("grigo.in","r");
FILE *out = fopen("grigo.out","w");

int n,m,i;
long long p;
fscanf(in,"%d%d",&n,&m);
for (;m;m--) fscanf(in,"%d",&p),A[p]=1;
p=1;
for (i=1;i<=n;i++) if (!A[i]) p=p*(i-1)%1000003;
fprintf(out,"%d",p);
}