Cod sursa(job #1386588)

Utilizator razvanvladdFicuta Razvan razvanvladd Data 13 martie 2015 08:49:19
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.47 kb
#include <fstream>
#define modulo 1999999973
using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
int n,p;
long long lgput(int p)
{
    long long aux;
    if (p==0) return 1;
    else
    {
        if (p%2==0)
        {
            aux=lgput(p/2)%modulo;
            return ((aux%modulo)*(aux%modulo))%modulo;
        }
        else return (n*(lgput(p-1))%modulo)%modulo;
    }
}
int main ()
{
    f>>n>>p;
    g<<lgput(p);
    return 0;
}