結果

問題 No.1140 EXPotentiaLLL!
ユーザー stoqstoq
提出日時 2020-10-17 10:45:36
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 984 ms / 2,000 ms
コード長 3,777 bytes
コンパイル時間 2,060 ms
コンパイル使用メモリ 205,744 KB
実行使用メモリ 4,380 KB
最終ジャッジ日時 2023-09-28 07:28:36
合計ジャッジ時間 11,643 ms
ジャッジサーバーID
(参考情報)
judge14 / judge15
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 952 ms
4,380 KB
testcase_01 AC 184 ms
4,380 KB
testcase_02 AC 966 ms
4,376 KB
testcase_03 AC 276 ms
4,376 KB
testcase_04 AC 211 ms
4,380 KB
testcase_05 AC 335 ms
4,376 KB
testcase_06 AC 319 ms
4,380 KB
testcase_07 AC 984 ms
4,380 KB
testcase_08 AC 2 ms
4,376 KB
testcase_09 AC 2 ms
4,380 KB
testcase_10 AC 2 ms
4,380 KB
testcase_11 AC 1 ms
4,380 KB
testcase_12 AC 1 ms
4,380 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#define MOD_TYPE 1

#pragma region Macros

#include <bits/stdc++.h>
using namespace std;

#if 0
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
using Int = boost::multiprecision::cpp_int;
using lld = boost::multiprecision::cpp_dec_float_100;
#endif
#if 0
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#endif
using ll = long long int;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pld = pair<ld, ld>;
template <typename Q_type>
using smaller_queue = priority_queue<Q_type, vector<Q_type>, greater<Q_type>>;

constexpr ll MOD = (MOD_TYPE == 1 ? (ll)(1e9 + 7) : 998244353);
//constexpr ll MOD = 1;
constexpr int INF = (int)1e9 + 10;
constexpr ll LINF = (ll)4e18;
constexpr double PI = acos(-1.0);
constexpr double EPS = 1e-9;
constexpr int Dx[] = {0, 0, -1, 1, -1, 1, -1, 1, 0};
constexpr int Dy[] = {1, -1, 0, 0, -1, -1, 1, 1, 0};

#define REP(i, m, n) for (ll i = m; i < (ll)(n); ++i)
#define rep(i, n) REP(i, 0, n)
#define REPI(i, m, n) for (int i = m; i < (int)(n); ++i)
#define repi(i, n) REPI(i, 0, n)
#define MP make_pair
#define MT make_tuple
#define YES(n) cout << ((n) ? "YES" : "NO") << "\n"
#define Yes(n) cout << ((n) ? "Yes" : "No") << "\n"
#define possible(n) cout << ((n) ? "possible" : "impossible") << "\n"
#define Possible(n) cout << ((n) ? "Possible" : "Impossible") << "\n"
#define Yay(n) cout << ((n) ? "Yay!" : ":(") << "\n"
#define all(v) v.begin(), v.end()
#define NP(v) next_permutation(all(v))
#define dbg(x) cerr << #x << ":" << x << "\n";

struct io_init
{
  io_init()
  {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << setprecision(30) << setiosflags(ios::fixed);
  };
} io_init;
template <typename T>
inline bool chmin(T &a, T b)
{
  if (a > b)
  {
    a = b;
    return true;
  }
  return false;
}
template <typename T>
inline bool chmax(T &a, T b)
{
  if (a < b)
  {
    a = b;
    return true;
  }
  return false;
}
inline ll CEIL(ll a, ll b)
{
  return (a + b - 1) / b;
}
template <typename A, size_t N, typename T>
inline void Fill(A (&array)[N], const T &val)
{
  fill((T *)array, (T *)(array + N), val);
}
template <typename T, typename U>
constexpr istream &operator>>(istream &is, pair<T, U> &p) noexcept
{
  is >> p.first >> p.second;
  return is;
}
template <typename T, typename U>
constexpr ostream &operator<<(ostream &os, pair<T, U> &p) noexcept
{
  os << p.first << " " << p.second;
  return os;
}
#pragma endregion

using Int = __int128;

Int modpow(Int a, Int n, Int m)
{
  Int res = 1;
  while (n > 0)
  {
    if (n & 1)
      res = res * a % m;
    n >>= 1;
    a = a * a % m;
  }
  return res;
}

// Miller–Rabin
bool is_prime(Int n)
{
  if (n == 2)
    return true;
  if (n <= 1 or (n & 1) == 0)
    return false;

  Int d = n - 1;
  while ((d & 1) == 0)
    d >>= 1;

  vector<Int> v;

  if (n < 4'759'123'141)
  {
    v = {2, 7, 61};
  }
  else if (n < 341'550'071'728'321)
  {
    v = {2, 3, 5, 7, 11, 13, 17};
  }
  else
  {
    static random_device seed_gen;
    static mt19937_64 engine(seed_gen());
    static const int sim_times = 100;
    for (int i = 0; i < sim_times; ++i)
      v.emplace_back(engine() % (n - 1) + 1);
  }
  for (Int a : v)
  {
    if (a >= n)
      continue;
    Int t = d;
    Int y = modpow(a, t, n);
    while (t != n - 1 and y != 1 and y != n - 1)
    {
      y = y * y % n;
      t <<= 1;
    }
    if (y != n - 1 and (t & 1) == 0)
      return false;
  }
  return true;
}

void solve()
{
  ll a, p;
  cin >> a >> p;
  if (is_prime(p))
  {
    if (a % p == 0)
      cout << 0 << "\n";
    else
      cout << 1 << "\n";
  }
  else
  {
    cout << -1 << "\n";
  }
}

int main()
{
  int testcase;
  cin >> testcase;
  while (testcase--)
    solve();
}
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