Cod sursa(job #297979)

Utilizator TyberFMI Dogan Adrian Ioan Lucian Tyber Data 5 aprilie 2009 19:03:05
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include<stdio.h>
#include<string.h>
const int max=10001;
const int m=2000000000;
int main(){
	unsigned int n,i,p;
	long long a,s=1;
	freopen("lgput.in","r",stdin);
	freopen("lgput.out","w",stdout);
	scanf("%d %d",&n,&p);
	a=n;
	for(i=0;(1<<i)<=p;i++){
		if(((1<<i)&p)>0)s=(s*a)%m;
		a=(a*a)%m;}
	printf("%lld\n",s);
	return 0;}