test/aoj/NTL_1_E/main.test.cpp

• View this file on GitHub
• Last update: 2021-04-23 23:44:44+09:00
• Problem: http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=NTL_1_E
• Link: View error logs on GitHub Actions

Depends on

• Extended Euclidean algorithm (Mylib/Number/extended_gcd.cpp)

Code

#define PROBLEM "http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=NTL_1_E"

#include <iostream>
#include "Mylib/Number/extended_gcd.cpp"

namespace hl = haar_lib;

int main() {
  int a, b;
  std::cin >> a >> b;

  int x, y;
  std::tie(std::ignore, x, y) = hl::ext_gcd(a, b);

  std::cout << x << " " << y << std::endl;

  return 0;
}

#line 1 "test/aoj/NTL_1_E/main.test.cpp"
#define PROBLEM "http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=NTL_1_E"

#include <iostream>
#line 2 "Mylib/Number/extended_gcd.cpp"
#include <tuple>

namespace haar_lib {
  auto ext_gcd(int64_t a, int64_t b) -> std::tuple<
      int64_t,  // gcd
      int64_t,  // p
      int64_t   // q
      > {
    if (b == 0) return std::make_tuple(a, 1, 0);
    const auto [d, q, p] = ext_gcd(b, (a + b) % b);
    return std::make_tuple(d, p, q - a / b * p);
  }
}  // namespace haar_lib
#line 5 "test/aoj/NTL_1_E/main.test.cpp"

namespace hl = haar_lib;

int main() {
  int a, b;
  std::cin >> a >> b;

  int x, y;
  std::tie(std::ignore, x, y) = hl::ext_gcd(a, b);

  std::cout << x << " " << y << std::endl;

  return 0;
}

Back to top page