Cod sursa(job #308106)
| Utilizator |  Ana Ivan bluemoonai |
Data | 25 aprilie 2009 23:31:46 |
|---|---|---|---|
| Problema | Suma divizorilor | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.19 kb |
#include<fstream.h>
#include<math.h>
int main()
{
long long p,a,b;
ifstream in("sumdiv.in");
ofstream out("sumdiv.out");
in>>a>>b;
p=pow (a,b+1);
out<<((p-1)/(a-1))%9901;
return 0;
}