Cod sursa(job #1849958)

Utilizator tziplea_stefanTiplea Stefan tziplea_stefan Data 17 ianuarie 2017 23:36:35
Problema Suma si numarul divizorilor Scor 70
Compilator cpp Status done
Runda Arhiva educationala Marime 1.29 kb
#include <fstream>
#include <bitset>
#define MOD 9973
#define VAL 1000005

using namespace std;

ifstream fin("ssnd.in");
ofstream fout("ssnd.out");

int T, cnt, k, e;
int v[VAL], K;
long long N, i, j, nr;
long long NRDIV, P;
long long SUM, NR;
bitset<VAL> ok;

int main()
{
    ok[1]=ok[0]=1;
    for (i=2; i<=VAL; i++)
    {
        if (ok[i]==0)
        {
            v[++K]=i;
            for (j=i*i; j<=VAL; j+=i)
              ok[i]=1;
        }
    }
    fin >> T;
    for (cnt=1; cnt<=T; cnt++)
    {
        fin >> N;
        SUM=1;
        NRDIV=1;
        for (k=1; k<=K; k++)
        {
            nr=v[k];
            if (nr*nr>N)
              break;
            if (N % nr==0)
            {
                e=1;
                P=nr;
                while (N % nr==0)
                {
                    N/=nr;
                    e++;
                    P*=nr;
                }
                NRDIV*=e;
                NR=(P-1) / (nr-1);
                NR%=MOD;
                SUM*=NR;
                SUM%=MOD;
            }
        }
        if (N!=1)
        {
            NRDIV*=2;
            NR=(N*N-1) / (N-1);
            NR%=MOD;
            SUM*=NR;
            SUM%=MOD;
        }
        fout << NRDIV << " " << SUM << '\n';
    }
    fin.close();
    fout.close();
    return 0;
}