Cod sursa(job #1972996)

Utilizator darisavuSavu Daria darisavu Data 24 aprilie 2017 10:51:59
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.3 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;
ifstream f("lgput.in");
ofstream g("lgput.out");
long long n,i,a,p,nr=1;
int main()
{
    f>>n>>p;
    a=n;
    for(i=0;(1<<i)<=p;i++)
    {
        if(((1<<i)&p)>0) nr=(nr*a)%1999999973;
        a=(a*a)%1999999973;
    }
    g<<nr;
    return 0;
}