Cod sursa(job #1105944)
Utilizator | Data | 12 februarie 2014 11:44:43 | |
---|---|---|---|
Problema | Ridicare la putere in timp logaritmic | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.44 kb |
#include<fstream>
#define REST 1999999973
using namespace std;
ifstream in("lgput.in");
ofstream out("lgput.out");
long long putere(long long n,long long p)
{
if(p==1)
return n;
else
{
if(p%2==0)
return putere(n*n%REST,p/2);
else
return n*putere(n*n%REST,(p-1)/2)%REST;
}
}
int main()
{
long long n,p;
in>>n>>p;
out<<putere(n%REST,p);
return 0;
}