Cod sursa(job #1145041)

Utilizator radarobertRada Robert Gabriel radarobert Data 17 martie 2014 20:20:59
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.42 kb
#include <fstream>
#define mod 1999999973

using namespace std;

int main()
{long long a, b, p;
    ifstream in("lgput.in");
    ofstream out("lgput.out");
    in >> a >> b;
    p = 1;
    while (b)
    {
        if (b % 2 == 1)
        {
            p = (p % mod) * (a % mod);
            p %= mod;
        }
        a *= a;
        a %= mod;
        b /= 2;
    }
    out << p << '\n';

    return 0;
}