Cod sursa(job #2145451)

Utilizator ZenoTeodor Anitoaei Zeno Data 27 februarie 2018 13:04:51
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include <bits/stdc++.h>
#define MOD 1999999973

using namespace std;

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

long long n, p;

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

int main()
{
    fin >> n >> p;
    fout << logExp(n, p);
    return 0;
}