Cod sursa(job #12998)
Utilizator | Data | 5 februarie 2007 13:21:44 | |
---|---|---|---|
Problema | Suma divizorilor | Scor | 20 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.37 kb |
#include<fstream.h>
int main()
{long a,b,s=0,p=1,i;
ifstream f("sumdiv.in");
ofstream g("sumdiv.out");
f>>a;
f>>b;
if (a==0) {p=0; g<<"0";}
else if (b==0&&a!=0) {p=1; g<<"1";}
else {for (i=1; i<=b; i++)
p=p*a;
s=(p+1)%9901;
for (i=2; i<=p/2;i++)
if (p%i==0) s=(s+i)%9901;
s=s%9901;
g<<s; }
f.close();
g.close();
return 0;}