Cod sursa(job #1952599)

Utilizator ticozaurStratila Andrei ticozaur Data 4 aprilie 2017 11:23:51
Problema Suma si numarul divizorilor Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.03 kb
#include <fstream>
#include <vector>
#include <iostream>
#include <cmath>

using namespace std;
ifstream fin("ssnd.in");
ofstream fout("ssnd.out");
long long n,nr,p,nrdiv,sumdiv,t,MOD=9973;
vector<bool> v;
vector<int> prim;
void prime()
{
    p=pow(10,5);
    v.resize(p,true);
    for(int i=2; i<=p; i++)
    {
        if(v[i])
        {
            nr++;
            prim.push_back(i);
            for(int j=2*i; j<=p; j=i+j)
                v[j]=false;
        }
    }
}
void sol(int numar)
{
    int i=0,exp=1;
    while(numar!=1 && (i<=n || i<=nr))
    {
        exp=1;
        while(numar%prim[i]==0)
        {
            exp++;
            numar/=prim[i];
        }
        nrdiv*=exp;
        sumdiv*=(pow(prim[i],exp)-1)/(prim[i]-1);
        sumdiv=sumdiv%MOD;
        i++;
    }
}
int main()
{
    prime();
    fin>>t;
    for(int i=1; i<=t; i++)
    {
        nrdiv=1;
        sumdiv=1;
        fin>>n;
        sol(n);
        fout<<nrdiv<<' '<<sumdiv<<'\n';
    }
    return 0;
}