Cod sursa(job #1918171)

Utilizator Alexandru_StoianStoian Sorin Alexandru Alexandru_Stoian Data 9 martie 2017 14:23:52
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <fstream>
#include <iostream>

using namespace std;


const int m = 1999999973;

ifstream f ("lgput.in");
ofstream g ("lgput.out");

long long sol,a;
int  b, n, p, i;
int main()
{
    f >> n >> p;
    a = n;
    sol = 1;
    for (i = 0; (1<<i) <= p; ++ i)
    {
        if ( ((1<<i) & p) > 0)
            sol= (sol * a) % m;
            a=(a * a) % m;
    }
    g << sol;
}