Cod sursa(job #2207477)

Utilizator Davla2Stancu Vlad Davla2 Data 25 mai 2018 19:25:54
Problema Ridicare la putere in timp logaritmic Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.31 kb
Raporteaza aceasta sursa 
#include <fstream>

using namespace std;

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

const int R=1999999973;

int main()
{
    int n,p,a;
    in>>n>>a;
    p=1;
    while(n!=0)
    {
        if(n%2!=0)
        {
            p=p*a%R;
        }
        n/=2;
        a=a*a%R;
    }
    out<<p;
    return 0;
}