Cod sursa(job #2077643)

Utilizator OldpugAlex Ionescu Oldpug Data 28 noiembrie 2017 13:04:03
Problema Ridicare la putere in timp logaritmic Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.36 kb
#include <bits/stdc++.h>
#include <cstdint>
 
constexpr const int32_t m = 1999999973;
  
int main() {
  int64_t n, p;
  std::ifstream("lgput.in") >> n >> p;

  auto sol = 1ll;
  
  for (auto i = 0; (1 << i) <= p; ++i) {
    if (((1 << i) & p) > 0) {
      sol *= n;
      sol %= m;
    }

    n *= n;
    n %= m;
  }
   
  std::ofstream("lgput.out") << sol << '\n';
}