Cod sursa(job #2638814)

Utilizator zarg169Roxana zarg169 Data 30 iulie 2020 00:33:29
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.47 kb
#include <iostream>
#include <fstream>

using namespace std;
int MOD = 1999999973;
int lgput(int x, int n) {
    if (n == 1) {
        return x;
    } else if (n % 2 == 0) {
        return lgput (1LL * x * x % MOD, n / 2);
    } else {
        return 1LL * x * lgput(x * x, (n - 1)/2) % MOD;
    }
}

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

    int n, p;
    fin >> n >> p;
    fout << lgput(n, p);

    return 0;
}