Cod sursa(job #3295965)

Utilizator mateicrainiceanuMatei Crainiceanu mateicrainiceanu Data 10 mai 2025 11:48:24
Problema Ridicare la putere in timp logaritmic Scor 10
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.53 kb
#include <fstream>
#include <iostream>
using namespace std;

#define MOD 1999999973

long long exponentiation_by_sq(long long n, long long p) {
    if (p == 0)
        return 1;
    if (p % 2 == 0)
        return exponentiation_by_sq(n * n, p / 2) % MOD ;
    if (p % 2 == 1) {
        return n * exponentiation_by_sq(n * n, (p - 1) / 2) % MOD;
    }
    return 1;
}

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

    unsigned int n, p;
    fin >> n >> p;
    fout << exponentiation_by_sq(n, p);

    return 0;
}