Cod sursa(job #2078795)

Utilizator segal_ftw3Luncanu Sergiu segal_ftw3 Data 29 noiembrie 2017 23:02:22
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
#define mod 1999999973
ifstream fin("lgput.in");
ofstream fout("lgput.out");
int main()
{
    long long n,p;
    fin>>n>>p;
    long long sol=1;
    for (int i=0;(1<<i)<=p;++i)
    {
        if ( ((1<<i)&p) > 0)
            sol=(sol*n)%mod;
        n=(n*n) %mod;
    }
    fout<<sol;
}