Cod sursa(job #3205382)

Utilizator davidpandele0Pandele David davidpandele0 Data 19 februarie 2024 14:24:37
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.46 kb
#include <iostream>
#include<fstream>
using namespace std;

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

unsigned rp(unsigned n, unsigned p)
{
    unsigned r = 1;
    while (p) {
        if (p % 2 == 1) {
            r = r * n;
            r %= 1999999973;
        }
        n = n * n;
        n %= 1999999973;
        p /= 2;
    }

    return r;
}
int main()
{
    unsigned n, p;
    f >> n >> p;
    fout << rp(n, p);
    return 0;
}