Cod sursa(job #3157402)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 15 octombrie 2023 14:46:59
Problema Grigo Scor 100
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.29 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
ifstream f("grigo.in");
ofstream g("grigo.out");
int i,a[100001],m,n;
long long p=1;
int main()
{
    for(f>>n>>m;m;--m)
        f>>i,a[i-1]=1;
    for(i=1;i<n;++i)
        if(!a[i])
            p=(p*i)%1000003;
    g<<p;
    return 0;
}