Cod sursa(job #864064)

Utilizator acomAndrei Comaneci acom Data 24 ianuarie 2013 17:23:54
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
#define Mod 1999999973
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,p;
int exp(int k)
{
if (k==0) return 1;
if (k%2==0) return (exp(k>>1)*exp(k>>1))%Mod;
else return (exp(k-1)*n)%Mod;
}
int main()
{
f>>n>>p;
g<<exp(p)<<'\n';
return 0;
}