Cod sursa(job #1649862)

Utilizator andrew_assassin789Andrei Manea andrew_assassin789 Data 11 martie 2016 15:26:47
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <fstream>
#define mod 1999999973
using namespace std;

int main()
{
    ifstream f("lgput.in");
    ofstream g("lgput.out");
    int n,p;
    long long x=1LL;
    f>>n>>p;
    while (p)
    {
        if (!(p%2))
        {
            p/=2;
            n*=n;
            n%=mod;
        }
        else
        {
            p--;
            x*=n;
            x%=mod;
        }
    }
    g<<x<<'\n';
    f.close();
    g.close();
    return 0;
}