Cod sursa(job #727890)

Utilizator bocacristiBoca Nelu Cristian bocacristi Data 28 martie 2012 12:42:27
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
using namespace std;

#define m 1999999973

ifstream fin("lgput.in");
ofstream fout("lgput.out");

unsigned int i, n, p;
long long sol = 1, a;

int main()
{
	fin >> n >> p;
	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';
}