Cod sursa(job #397327)

Utilizator andreirRoti Andrei andreir Data 16 februarie 2010 20:02:00
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.29 kb
Raporteaza aceasta sursa 
#include<stdio.h>
#define m 1999999973
int main()
{
	int i,a,p,sol=1;
	freopen("lgput.in","r",stdin);
	freopen("lgput.out","w",stdout);
	
	scanf("%d %d",&a,&p);
	
	for(i=0;(1<<i)<=p;i++)
	{
		if( ((1<<i)&p)>0)
			sol=(sol*a)%m;
		a=(a*a)%m;
	}
	printf("%d\n",sol);
	return 0;
}