Cod sursa(job #1011123)

Utilizator cozmin97Gemene Cozmin cozmin97 Data 16 octombrie 2013 11:13:39
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.49 kb
#include <fstream>
#include <string.h>

const int n_max = 10001;
const int m = 1999999973;
using namespace std;

int main()
{
    unsigned int i, n, p;
    long long a, sol = 1;
    ifstream fin("lgput.in");
    fin>>n>>p;
    fin.close();
    ofstream fout("lgput.out");
      a = n;
    for (i = 0; (1<<i) <= p; ++ i)
    {
        if ( ((1<<i) & p) > 0)
            sol= (sol * a) % m;
            a=(a * a) % m;
    }
    fout<<sol<<"\n";
    fout.close();
    return 0;
}