Cod sursa(job #1479141)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 30 august 2015 17:11:08
Problema Grigo Scor 100
Compilator c Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include<stdio.h>
int c[100001],n,m,i,b=1;
int main() {
    freopen("grigo.in","r",stdin),freopen("grigo.out","w",stdout),scanf("%d%d",&n,&m);
    while(m--)
        scanf("%d",&i),c[i]=1;
    for(i=2;i<=n;i++)
    if(!c[i])
        b=(1LL*b*(i-1))%1000003;
    printf("%d",b);
}