Cod sursa(job #2249284)

Utilizator andreea_chivuAndreea Chivu andreea_chivu Data 29 septembrie 2018 14:58:23
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp Status done
Runda Arhiva educationala Marime 0.45 kb
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    long long a, n, p;

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

    fin>>a>>n;
    p=1;
    while(n>0)
    {
        if(n%2!=0)
        {
            p*=a;
            p%=199999997;
        }
        a*=a;
        a%=199999997;
        n/=2;
    }

    fout<<p%199999997;

    fin.close();
    fout.close();

    return 0;
}