Cod sursa(job #2424206)

Utilizator AndreiStrAndrei Stroici AndreiStr Data 22 mai 2019 19:37:21
Problema Suma divizorilor Scor 20
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.28 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
ifstream f("sumdiv.in");
ofstream g("sumdiv.out");
int a,b;
long long s,p=1;

int main()
{
    f>>a>>b;
    if(a==1)
    {
        g<<1;
        return 0;
    }
    p=pow(a,b);
    g<<a*(p-1)/(a-1)+1;
    return 0;
}