Cod sursa(job #156495)

Utilizator snaked31Stanica Andrei snaked31 Data 12 martie 2008 16:33:48
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <stdio.h>

#define modulo 1999999973

long long n, p;

long long pow(long long x, long long y)

{
    long long aux;
    if (y == 0)
        return 1;
    if (y & 1)
        return ((x * pow(x, y-1)) % modulo);
    else
        aux = (pow(x, y/2) % modulo);
    return ((aux*aux) % modulo);
}


int main()

{
	freopen("lgput.in", "r", stdin);
	freopen("lgput.out","w",stdout);

	scanf("%lld %lld ", &n, &p);
	printf("%lld\n", pow(n, p) % modulo);

	return 0;
}