Cod sursa(job #2134602)
| Utilizator | Data | 18 februarie 2018 09:46:23 | |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 10 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.38 kb |
#include <fstream>
#define M 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int p,a,b;
int rec(int n,int o);
int main()
{
fin>>a>>b;
p=rec(a,b);
fout<<p<<'\n';
return 0;
}
int rec(int n,int o)
{
if(o==0)
return 1;
int x=rec(n,o/2)%M;
if(o%2)
return (((x*x)%M)*n)%M;
return (x*x)%M;
}
