Cod sursa(job #1098645)

Utilizator ctlin04UAIC.VlasCatalin ctlin04 Data 4 februarie 2014 23:14:59
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;
const int mod=1999999973;
long long n,p,rez;

int main(void) {
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    
    fin>>n>>p;
    
    rez=1;
    
    while (p>0) 
     if (p%2==0) { n*=n; n%=mod; p/=2; }
      else { rez*=n; rez%=mod; --p; }
    fout<<rez;
    
 return(0);
}