Cod sursa(job #2632428)

Utilizator Alex_DumitrascuAlex Dumitrascu Alex_Dumitrascu Data 3 iulie 2020 11:54:59
Problema Suma si numarul divizorilor Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.35 kb
#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
ifstream fin ("ssnd.in");
ofstream fout ("ssnd.out");
bitset <1100005> ciur;
int nrprime[79000];
inline void eratostene()
{
    ciur[0]=ciur[1]=1;
    for (int i=2; i*i<=1000000; i++)
    {
        if (ciur[i]==0)
        {
            for (int j=i*i; j<=1000000; j+=i)
                ciur[j]=1;
        }
    }
    int cnt=0;
    for (int i=1; i<=1000000; i++)
    {
         if (ciur[i]==0)
         {
             nrprime[++cnt]=i;
             //cout<<i<<endl;
         }
    }
}
#define short long long
short suma=1, nrdiv=1;
inline void suma_div (short nr)
{
    short d=1, exp=0;
    suma=1;
    short nrog=nr;
    nrdiv=1;
    while (nr>1)
    {
        short p=1;
        exp=0;
        while (nr%nrprime[d]==0)
        {
            exp++;
            p*=nrprime[d];
            nr/=nrprime[d];
        }
        if (exp>0)
        {
            p*=nrprime[d];
            nrdiv*=(exp+1);
            short prod=(p-1)/(nrprime[d]-1);
            suma*=prod;
        }
        d++;
    }
    //suma-=nrog;
}
int main()
{
    int n;
    fin>>n;
    eratostene();
    for (int i=1; i<=n; i++)
    {
        short nr;
        fin>>nr;
        suma_div(nr);
        fout<<nrdiv<<" "<<suma%9973<<endl;
    }
    return 0;
}