Cod sursa(job #558217)

Utilizator sora_naeginoTimofte Stefana sora_naegino Data 17 martie 2011 09:55:25
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
ifstream fin ("lgput.in");
ofstream fout("lgput.out");
int x, n, r, px;
int main()
{
int modulo = 1999999973,  rez=1;
fin>>x>>n;
px=x;
while (n)
	{
	r=n%2;
	if(r)
		rez=(rez*px)%modulo;
		px=(px*px)%modulo;
		n/=2;
	}
fout << rez;

fout.close();
return 0;
}