Cod sursa(job #2506939)

Utilizator Octavian703Octavian Corbu Octavian703 Data 9 decembrie 2019 08:14:10
Problema Dirichlet Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.5 kb
#include <fstream>

using namespace std;

ifstream f("dirichlet.in");
ofstream g("dirichlet.out");

const int MOD=9999991;

long long power(long long a, int b)
{
    long long p=1;
    while(b)
    {
        if(b&1)
            p=p*a%MOD;
        a=a*a%MOD;
        b=1;
    }
    return p;
}

int main()
{
    long long a=1,b=1,n,i;
    f>>n;
    for(i=2;i<=n;i++)
        {
            a=a*(n+1)%MOD;
            b=b*i%MOD;
        }
    g<<a*power(b,MOD-2)%MOD;
    return 0;
}