Cod sursa(job #1712532)

Utilizator SirbuSirbu Ioan Sirbu Data 3 iunie 2016 00:13:55
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.44 kb
#include <fstream>
#define mod 1999999973
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");

int main()
{

    int x,n;
    fin >> x >> n;
    int y=1;
    while (n>1)
    {
      if (n%2==0)
      {
        x=1LL*x*x%mod;
        n=n/2;
      }
      else
      {
        y=x*y%mod;
        x=x*x%mod;
        n=(n-1)/2;
      }
    }
    int rasp= 1LL*x*y%mod;
    fout << rasp;

    return 0;
}