Cod sursa(job #1346236)

Utilizator andreismara97Smarandoiu Andrei andreismara97 Data 18 februarie 2015 09:06:23
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.39 kb
#include<fstream>
using namespace std;

ifstream in("lgput.in");
ofstream out("lgput.out");

int putere(int n, int p)
{
    int ret=1, aux=n;

    for(int i=1; i<=p; i=i*2)
    {
        if(i&p)
            ret=ret*aux%1999999973;
        aux=aux*aux%1999999973;
    }
    return ret;
}

int main ()
{
    int n,p;
    in>>n>>p;
    out<<putere(n,p)<<'\n';
    return 0;
}