#503104 (C++17) No.1095 Smallest Kadomatsu Subsequence

• 問題: No.1095 Smallest Kadomatsu Subsequence
• ユーザー: kyawashell
• 提出日時: 2020-06-26 21:48:12
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: CE (最新)
  AC
  (最初)
• 実行時間: -
• コード長: 7,239 bytes
• コンパイル時間: 597 ms
• コンパイル使用メモリ: 76,316 KB
• 最終ジャッジ日時: 2024-04-27 03:15:00
• 合計ジャッジ時間: 1,715 ms
• ジャッジサーバーID （参考情報）: judge4 / judge5

コンパイルメッセージ

main.cpp: In function 'int main(int, char**)':
main.cpp:222:17: error: 'numeric_limits' was not declared in this scope
  222 |   int64_t ans = numeric_limits<int64_t>::max();
      |                 ^~~~~~~~~~~~~~
main.cpp:222:39: error: expected primary-expression before '>' token
  222 |   int64_t ans = numeric_limits<int64_t>::max();
      |                                       ^
main.cpp:222:45: error: no matching function for call to 'max()'
  222 |   int64_t ans = numeric_limits<int64_t>::max();
      |                                        ~~~~~^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/algorithm:60,
                 from main.cpp:4:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
main.cpp:222:45: note:   candidate expects 2 arguments, 0 provided
  222 |   int64_t ans = numeric_limits<int64_t>::max();
      |                                        ~~~~~^~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
main.cpp:222:45: note:   candidate expects 3 arguments, 0 provided
  222 |   int64_t ans = numeric_limits<int64_t>::max();
      |                                        ~~~~~^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/algorithm:61:
/home/linuxbrew/.l

ソースコード

#include <stdint.h>
#include <stdlib.h>

#include <algorithm>
#include <iostream>
#include <numeric>
#include <set>
#include <vector>
using namespace std;
using default_counter_t = int64_t;

// macro
#define let auto const&
#define overload4(a, b, c, d, name, ...) name
#define rep1(n) \
  for (default_counter_t i = 0, end_i = default_counter_t(n); i < end_i; ++i)
#define rep2(i, n)                                                           \
  for (default_counter_t i = 0, end_##i = default_counter_t(n); i < end_##i; \
       ++i)
#define rep3(i, a, b)                                    \
  for (default_counter_t i       = default_counter_t(a), \
                         end_##i = default_counter_t(b); \
       i < end_##i; ++i)
#define rep4(i, a, b, c)                                 \
  for (default_counter_t i       = default_counter_t(a), \
                         end_##i = default_counter_t(b); \
       i < end_##i; i += default_counter_t(c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)

#define rrep1(n) \
  for (default_counter_t i = default_counter_t(n) - 1; i >= 0; --i)
#define rrep2(i, n) \
  for (default_counter_t i = default_counter_t(n) - 1; i >= 0; --i)
#define rrep3(i, a, b)                                         \
  for (default_counter_t i         = default_counter_t(b) - 1, \
                         begin_##i = default_counter_t(a);     \
       i >= begin_##i; --i)
#define rrep4(i, a, b, c)                                          \
  for (default_counter_t                                           \
           i = (default_counter_t(b) - default_counter_t(a) - 1) / \
                   default_counter_t(c) * default_counter_t(c) +   \
               default_counter_t(a),                               \
           begin_##i = default_counter_t(a);                       \
       i >= begin_##i; i -= default_counter_t(c))
#define rrep(...) \
  overload4(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)

#define ALL(f, c, ...)                                           \
  (([&](decltype((c)) cccc) {                                    \
    return (f)(std::begin(cccc), std::end(cccc), ##__VA_ARGS__); \
  })(c))

// function
template <class C>
constexpr C& Sort(C& a) {
  std::sort(std::begin(a), std::end(a));
  return a;
}
template <class C>
constexpr auto& Min(C const& a) {
  return *std::min_element(std::begin(a), std::end(a));
}
template <class C>
constexpr auto& Max(C const& a) {
  return *std::max_element(std::begin(a), std::end(a));
}
template <class C>
constexpr auto Total(C const& c) {
  return std::accumulate(std::begin(c), std::end(c), C(0));
}
template <typename T>
auto CumSum(std::vector<T> const& v) {
  std::vector<T> a(v.size() + 1, T(0));
  for (std::size_t i = 0; i < a.size() - size_t(1); ++i) a[i + 1] = a[i] + v[i];
  return a;
}
template <typename T>
constexpr bool ChMax(T& a, T const& b) {
  if (a < b) {
    a = b;
    return true;
  }
  return false;
}
template <typename T>
constexpr bool ChMin(T& a, T const& b) {
  if (b < a) {
    a = b;
    return true;
  }
  return false;
}

void In(void) { return; }

template <typename First, typename... Rest>
void In(First& first, Rest&... rest) {
  cin >> first;
  In(rest...);
  return;
}

template <class T, typename I>
void VectorIn(vector<T>& v, const I n) {
  v.resize(size_t(n));
  rep(i, v.size()) cin >> v[i];
}

void Out(void) {
  cout << "\n";
  return;
}

template <typename First, typename... Rest>
void Out(First first, Rest... rest) {
  cout << first << " ";
  Out(rest...);
  return;
}

constexpr auto yes(const bool c) { return c ? "yes" : "no"; }
constexpr auto Yes(const bool c) { return c ? "Yes" : "No"; }
constexpr auto YES(const bool c) { return c ? "YES" : "NO"; }

// http://koturn.hatenablog.com/entry/2018/08/01/010000
template <typename T, typename U>
inline std::vector<U> MakeNdVector(T n, U val) noexcept {
  static_assert(std::is_integral<T>::value,
                "[MakeNdVector] The 1st argument must be an integer");
  return std::vector<U>(std::forward<T>(n), std::forward<U>(val));
}

template <typename T, typename... Args>
inline decltype(auto) MakeNdVector(T n, Args&&... args) noexcept {
  static_assert(std::is_integral<T>::value,
                "[MakeNdVector] The 1st argument must be an integer");
  return std::vector<decltype(MakeNdVector(std::forward<Args>(args)...))>(
      std::forward<T>(n), MakeNdVector(std::forward<Args>(args)...));
}

template <typename T, std::size_t N,
          typename std::enable_if<(N > 0), std::nullptr_t>::type = nullptr>
struct NdvectorImpl {
  using type = std::vector<typename NdvectorImpl<T, N - 1>::type>;
};  // struct ndvector_impl

template <typename T>
struct NdvectorImpl<T, 1> {
  using type = std::vector<T>;
};  // struct ndvector_impl

template <typename T, std::size_t N>
using NdVector = typename NdvectorImpl<T, N>::type;

#ifdef USE_STACK_TRACE_LOGGER
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Weverything"
#include <glog/logging.h>
#pragma clang diagnostic pop
#endif  //__clang__
#endif  // USE_STACK_TRACE_LOGGER

signed main(int argc, char* argv[]) {
  (void)argc;
#ifdef USE_STACK_TRACE_LOGGER
  google::InitGoogleLogging(argv[0]);
  google::InstallFailureSignalHandler();
#else
  (void)argv;
#endif  // USE_STACK_TRACE_LOGGER
  int64_t N;
  In(N);
  vector<int64_t> A(N);
  rep(i, N) In(A[i]);

#if 0
  set<int64_t> left, right;
  set<int64_t, greater<int64_t>> left_g, right_g;

  rep(i, N) {
    right.insert(A[i]);
    right_g.insert(A[i]);
  }

  int64_t ans = numeric_limits<int64_t>::max();
  rep(i, N) {
    right.erase(A[i]);
    right_g.erase(A[i]);
    int64_t B = A[i];
    {
      auto it_l = left.upper_bound(A[i]);
      auto it_r = right.upper_bound(A[i]);
      if (it_l != left.end() && it_r != right.end()) {
        cout << "a " << (*it_l) << " " << B << " " << (*it_r) << endl;
        ChMin(ans, (*it_l) + (*it_r) + B);
      }
    }
    {
      auto it_l = left_g.upper_bound(A[i]);
      auto it_r = right_g.upper_bound(A[i]);
      if (it_l != left_g.end() && it_r != right_g.end()) {
        cout << "b " << (*it_l) << " " << B << " " << (*it_r) << endl;
        ChMin(ans, (*it_l) + (*it_r) + B);
      }
    }
    left.insert(A[i]);
    left_g.insert(A[i]);
  }

  if (ans == numeric_limits<int64_t>::max()) {
    cout << -1 << endl;
  } else {
    cout << ans << endl;
  }
#endif
  set<int64_t> left, right;
  // set<int64_t, greater<int64_t>> left_g, right_g;

  rep(i, N) { right.insert(A[i]); }

  int64_t ans = numeric_limits<int64_t>::max();
  rep(i, N) {
    right.erase(A[i]);
    int64_t B = A[i];
    {
      auto it_l = left.upper_bound(A[i]);
      auto it_r = right.upper_bound(A[i]);
      if (it_l != left.end() && it_r != right.end()) {
        ChMin(ans, (*it_l) + (*it_r) + B);
      }
    }
    {
      auto it_l = left.begin();
      auto it_r = right.begin();
      if (it_l != left.end() && it_r != right.end() && (*it_l) < B &&
          (*it_r) < B) {
        ChMin(ans, (*it_l) + (*it_r) + B);
      }
    }
    left.insert(A[i]);
  }

  if (ans == numeric_limits<int64_t>::max()) {
    cout << -1 << endl;
  } else {
    cout << ans << endl;
  }
  return EXIT_SUCCESS;
}