結果

問題 No.2445 奇行列式
コンテスト
ユーザー risujiroh
提出日時 2023-08-25 22:16:20
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 2,214 ms / 3,000 ms
コード長 4,500 bytes
コンパイル時間 4,720 ms
コンパイル使用メモリ 367,048 KB
実行使用メモリ 19,680 KB
最終ジャッジ日時 2024-12-24 09:16:42
合計ジャッジ時間 17,886 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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ファイルパターン 結果
other AC * 20
権限があれば一括ダウンロードができます
コンパイルメッセージ
In file included from main.cpp:7:
main.cpp:50: warning: "assert" redefined
   50 | #define assert(expr) (expr) || (__builtin_unreachable(), 0)
      | 
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/cassert:44,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:33,
                 from main.cpp:3:
/usr/include/assert.h:92: note: this is the location of the previous definition
   92 | #  define assert(expr)                                                  \
      |

ソースコード

diff # 

#if __INCLUDE_LEVEL__ == 0

#include <bits/stdc++.h>

using namespace std;

#include __BASE_FILE__

namespace {

void solve() {
  int n, b;
  cin >> tie(n, b);
  atcoder::modint::set_mod(b);
  vector<array<atcoder::modint, 2>> f(1 << n);
  f[0][0] = 1;
  for (int i : rep(n)) {
    vector<array<atcoder::modint, 2>> nf(1 << n);
    for (int j : rep(n)) {
      int64_t a_;
      cin >> a_;
      atcoder::modint a = a_;
      for (int mask : rep(1 << n)) {
        for (int p : rep(2)) {
          if (f[mask][p] == 0 || mask >> j & 1) {
            continue;
          }
          int np = p + popcnt(mask >> j);
          np &= 1;
          nf[mask | 1 << j][np] += f[mask][p] * a;
        }
      }
    }
    f = move(nf);
  }
  print(f.back()[1]);
}

}  // namespace

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  solve();
}

#else  // __INCLUDE_LEVEL__

#define assert(expr) (expr) || (__builtin_unreachable(), 0)

#include <immintrin.h>

#include <atcoder/modint>

__attribute__((target("bmi"))) inline int tzcnt(int64_t x) {
  return _tzcnt_u64(x);
}

__attribute__((target("bmi2"))) inline int64_t bzhi(int64_t x, int n) {
  return _bzhi_u64(x, n);
}

__attribute__((target("bmi2"))) inline int64_t pdep(int64_t x, int64_t mask) {
  return _pdep_u64(x, mask);
}

__attribute__((target("bmi2"))) inline int64_t pext(int64_t x, int64_t mask) {
  return _pext_u64(x, mask);
}

__attribute__((target("lzcnt"))) inline int lzcnt(int64_t x) {
  return _lzcnt_u64(x);
}

__attribute__((target("popcnt"))) inline int popcnt(int64_t x) {
  return __builtin_popcountll(x);
}

struct bits {
  int64_t x;
  int i;
  explicit bits(int64_t x) : x(x), i(tzcnt(x)) {}
  bits begin() const { return *this; }
  int end() const { return 0; }
  bool operator!=(int) const { return x; }
  void operator++() { i = tzcnt(x &= x - 1); }
  int operator*() const { return i; }
};

struct subsets {
  int64_t x, y;
  explicit subsets(int64_t x) : x(x), y(x + 1) {}
  subsets begin() const { return *this; }
  int end() const { return 0; }
  bool operator!=(int) const { return y; }
  void operator++() const {}
  int64_t operator*() { return y = (y - 1) & x; }
};

template <class T, class U = T>
bool chmin(T& x, U&& y) {
  return y < x && (x = forward<U>(y), true);
}

template <class T, class U = T>
bool chmax(T& x, U&& y) {
  return x < y && (x = forward<U>(y), true);
}

namespace std {

template <class T1, class T2>
istream& operator>>(istream& is, pair<T1, T2>& p) {
  return is >> p.first >> p.second;
}

template <class... Ts>
istream& operator>>(istream& is, tuple<Ts...>& t) {
  return apply([&is](auto&... xs) -> istream& { return (is >> ... >> xs); }, t);
}

template <class... Ts>
istream& operator>>(istream& is, tuple<Ts&...>&& t) {
  return is >> t;
}

template <class R, enable_if_t<!is_convertible_v<R, string>>* = nullptr>
auto operator>>(istream& is, R&& r) -> decltype(is >> *begin(r)) {
  for (auto&& e : r) {
    is >> e;
  }
  return is;
}

template <class T1, class T2>
ostream& operator<<(ostream& os, const pair<T1, T2>& p) {
  return os << p.first << ' ' << p.second;
}

template <class... Ts>
ostream& operator<<(ostream& os, const tuple<Ts...>& t) {
  auto f = [&os](const auto&... xs) -> ostream& {
    [[maybe_unused]] auto sep = "";
    ((os << exchange(sep, " ") << xs), ...);
    return os;
  };
  return apply(f, t);
}

template <class R, enable_if_t<!is_convertible_v<R, string_view>>* = nullptr>
auto operator<<(ostream& os, R&& r) -> decltype(os << *begin(r)) {
  auto sep = "";
  for (auto&& e : r) {
    os << exchange(sep, " ") << e;
  }
  return os;
}

}  // namespace std

namespace atcoder {

template <class T, internal::is_modint_t<T>* = nullptr>
istream& operator>>(istream& is, T& x) {
  int v;
  is >> v;
  x = T::raw(v);
  return is;
}

template <class T, internal::is_modint_t<T>* = nullptr>
ostream& operator<<(ostream& os, const T& x) {
  return os << x.val();
}

}  // namespace atcoder

template <class... Ts>
void print(Ts&&... xs) {
  cout << tie(xs...) << '\n';
}

inline auto rep(int l, int r) { return views::iota(min(l, r), r); }
inline auto rep(int n) { return rep(0, n); }
inline auto rep1(int l, int r) { return rep(l, r + 1); }
inline auto rep1(int n) { return rep(1, n + 1); }
inline auto per(int l, int r) { return rep(l, r) | views::reverse; }
inline auto per(int n) { return per(0, n); }
inline auto per1(int l, int r) { return per(l, r + 1); }
inline auto per1(int n) { return per(1, n + 1); }

#endif  // __INCLUDE_LEVEL__
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