Cod sursa(job #1225807)

Utilizator adimitudorTudor Adimi adimitudor Data 3 septembrie 2014 17:21:11
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.32 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
long long a,b,r,mod=1999999973;
int main()
{
   fin>>a>>b;
   r=1;
   while(b)
   {
       if(b%2)
       {
           r=(r*a)%mod;
       }
       a=(a*a)%mod;
       b/=2;

   }
   fout<<r;
    return 0;
}