Cod sursa(job #1025995)

Utilizator danny794Dan Danaila danny794 Data 10 noiembrie 2013 21:21:40
Problema Suma si numarul divizorilor Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 1.17 kb
#include <fstream>

using namespace std;

const int NMAX = 999999;

int prime[NMAX], size, primes[100000], MOD = 9973, t, power, totalDiv;
long long N, totalSum, divisor;

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

void getPrimes(){
    for (int i = 4; i < NMAX; i+=2)
        prime[i] = 1;
    primes[size++] = 2;
    for (int i = 3; i < NMAX; i+=2)
        if (prime[i] == 0){
            primes[size++] = i;
            for (int j = 2 * i ; j < NMAX; j+=i){
                prime[j] = 1;
            }
        }
}

void solve(){
    totalSum = 1;
    totalDiv = 1;
  for (int i = 0; (1LL * primes[i] * primes[i] <= N) && (i < size); i++){
      if (N % primes[i] != 0) continue;
      power = 0;
      divisor = 1;
      while (!(N % primes[i])){
          power++;
          N /= primes[i];
          divisor*= primes[i];
      }
      totalSum*=(divisor * primes[i] - 1) / (primes[i] - 1) % MOD;
      totalDiv*=(1 + power);
  }

  if (N > 1){
      totalSum*=(1+N) % MOD;
      totalDiv*=2;
  }

  g << totalDiv << " " << totalSum << "\n";
}

int main() {
    getPrimes();
    for (f >> t; t; t--){
        f >> N;
        solve();
    }

    f.close();
    g.close();
    return 0;
}