Cod sursa(job #2373168)

Utilizator AdelaCorbeanuAdela Corbeanu AdelaCorbeanu Data 7 martie 2019 12:33:34
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.33 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;
long long sol=1, n, p, a, m=1999999973, i;
int main()
{
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin >> n >> p;
    a = n;
    for (i=0;(1<<i)<=p;++i) {
         if (((1<<i)&p)>0) sol = (sol*a)%m;
         a = (a*a)%m;
    }
    fout << sol;
    return 0;
}