Cod sursa(job #2468158)

Utilizator dnprxDan Pracsiu dnprx Data 5 octombrie 2019 13:12:01
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.45 kb
#include <fstream>
using namespace std;

int LogP(int a, int n)
{
    int rez = 1;
    while (n > 0)
    {
        if (n % 2 == 1)
            rez = 1LL * rez * a % 1999999973;
        n /= 2;
        a = 1LL * a * a % 1999999973;
    }
    return rez;
}

int main()
{
    int n, p;
    ifstream fin("lgput.in");
    ofstream fout("lgput.out");
    fin >> n >> p;
    fout << LogP(n, p) << "\n";
    fout.close();
    return 0;
}