Cod sursa(job #245106)

Utilizator yoyolichIoana Ardeleanu yoyolich Data 16 ianuarie 2009 20:22:58
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.37 kb
#include<cstdio>
#define mod 1999999973
#define bit(x) ((x&(x-1))^x)
FILE *f=fopen("lgput.in","r"), *g=fopen("lgput.out","w");
int n,p,i;
long long int a, sol;
int main()
{
	fscanf(f,"%d %d",&n,&p);
	fclose(f);
	a=n;
	sol=1;
	for (i = 0; (1<<i) <= p; ++ i)
	{
		if(bit(i)>0) sol=(sol*a)%mod;
		a=(a*a)%mod;
	}
	fprintf(g,"%lld\n",sol);
	fclose(g);
	return 0;
}