Cod sursa(job #229570)

Utilizator ZillaMathe Bogdan Zilla Data 10 decembrie 2008 19:06:51
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.4 kb
#include <stdio.h>

FILE *f=fopen("lgput.in","r"),*g=fopen("lgput.out","w");
int y=1999999973;

long long ridicare(int n, int p)
{
	if(p==1)
		return n%y;
	else
		if(p%2==1)
			return ((n%y)*(ridicare(n,p-1)%y))%y;
		else
			return (ridicare(n*n,p/2))%y;
}

int main()
{

	long long z;
	int n,p,x;
	fscanf(f,"%d%d",&n,&p);
	z=ridicare(n,p)%y;
	x=z;
    fprintf(g,"%d",x);
	return 0;

}