Cod sursa(job #1082052)

Utilizator edytzu15Andrei Edouard edytzu15 Data 14 ianuarie 2014 08:29:09
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include <fstream>
using namespace std;

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

int n, p;

int lgput(int x, int n)
{
	if(n == 0)
	{
		return 1;
	}
	else if(n == 1)
	{
		return x;
	}
	else if(n % 2 == 0)
	{
		lgput(x*x, n/2);
	}
	else if(n % 2 == 1)
	{
		lgput(x*x, (n-1)/2);
	}
}

int main()
{
	fin >> n >> p;
	fout << lgput(n, p) % 1999999973;
}