Cod sursa(job #558218)

Utilizator DianaEllenaDiana Elena DianaEllena Data 17 martie 2011 09:55:46
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int modulo=1999999973;
int main()
{
	int n,p,rez=1,r,x,px;
	fin>>n>>x;
	px=x;
	while(n)
	{
		r=n%2;
		if(r) 
			rez=(rez*px)%modulo;
		px=px*px; n/=2;
	}
	
	fout<<rez;
	fout.close();
	return 0;
}