Cod sursa(job #490203)

Utilizator cumbaiaMihai Bercu cumbaia Data 5 octombrie 2010 15:19:23
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.26 kb
Raporteaza aceasta sursa 
#include<cstdio>

int r=1999999973;

int main()
{
	int p=1,a,n;
	freopen("lgput.in","r",stdin);
	freopen("lgput.out","w",stdout);
	scanf("%d%d",&n,&a);
	while(n!=0)
	{
		if(n%2!=0)
			p=(p*a)%r;
		a=a*a%r;
		n/=2;
	}
	printf("%d\n",p%r);
	return 0;
}