Cod sursa(job #2467801)

Utilizator Rares5000Baciu Rares Rares5000 Data 5 octombrie 2019 08:24:04
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.46 kb
#include <iostream>
#include <fstream>
#define Mod 1999999973
using namespace std;

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

int LogP(int a, int n)
{
    int p = 1;
    while(n > 0)
    {
        if(n % 2 == 1)
            p = 1LL * p * a % Mod;
        a = 1LL * a * a % Mod;
        n /= 2;
    }
    return p;
}
int main()
{
    int a, n;
    fin >> a >> n;
    fout << LogP(a, n) << "\n";
    fout.close();
    return 0;
}