Cod sursa(job #3296881)

Utilizator blnsara_10Sara Balanescu blnsara_10 Data 18 mai 2025 11:27:52
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.57 kb
#include <iostream>
#include <fstream>
using namespace std;

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

#define MOD 1999999973

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

int main() {

    unsigned long long N,P;
    fin>>N>>P;
    fout<<fastExponentiation(N,P);

    fin.close();
    fout.close();
    return 0;
}