結果

問題 No.1265 Balloon Survival
ユーザー stoqstoq
提出日時 2020-09-08 04:05:17
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
MLE  
(最新)
AC  
(最初)
実行時間 -
コード長 3,579 bytes
コンパイル時間 2,490 ms
コンパイル使用メモリ 213,504 KB
実行使用メモリ 813,544 KB
最終ジャッジ日時 2024-06-02 10:25:22
合計ジャッジ時間 4,382 ms
ジャッジサーバーID
(参考情報)
judge2 / judge5
このコードへのチャレンジ
(要ログイン)

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 2 ms
6,812 KB
testcase_01 AC 1 ms
6,940 KB
testcase_02 AC 2 ms
6,944 KB
testcase_03 AC 1 ms
6,940 KB
testcase_04 AC 2 ms
6,944 KB
testcase_05 AC 387 ms
7,216 KB
testcase_06 AC 11 ms
6,940 KB
testcase_07 AC 4 ms
6,940 KB
testcase_08 AC 2 ms
6,940 KB
testcase_09 AC 1 ms
6,940 KB
testcase_10 AC 1 ms
6,944 KB
testcase_11 AC 19 ms
6,944 KB
testcase_12 AC 386 ms
7,440 KB
testcase_13 AC 2 ms
6,944 KB
testcase_14 MLE -
testcase_15 -- -
testcase_16 -- -
testcase_17 -- -
testcase_18 -- -
testcase_19 -- -
testcase_20 -- -
testcase_21 -- -
testcase_22 -- -
testcase_23 -- -
testcase_24 -- -
testcase_25 -- -
testcase_26 -- -
testcase_27 -- -
testcase_28 -- -
testcase_29 -- -
testcase_30 -- -
testcase_31 -- -
testcase_32 -- -
testcase_33 -- -
testcase_34 -- -
testcase_35 -- -
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
main.cpp: In function 'void solve()':
main.cpp:146:37: warning: 'd2' may be used uninitialized [-Wmaybe-uninitialized]
  146 |       chmin(dp[msk | (1 << d1) | (1 << d2)], dp[msk]);
      |                                  ~~~^~~~~~
main.cpp:133:15: note: 'd2' was declared here
  133 |       int d1, d2;
      |               ^~
main.cpp:146:25: warning: 'd1' may be used uninitialized [-Wmaybe-uninitialized]
  146 |       chmin(dp[msk | (1 << d1) | (1 << d2)], dp[msk]);
      |                      ~~~^~~~~~
main.cpp:133:11: note: 'd1' was declared here
  133 |       int d1, d2;
      |           ^~

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 1
#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-11;
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 init_main
{
  init_main()
  {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << setprecision(30) << setiosflags(ios::fixed);
  };
} init_main_;
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

inline int nc(int i)
{
  if (i == 0)
    return INF;
  int x = i & -i, y = i + x;
  return (((i & ~y) / x) >> 1) | y;
}

void solve()
{
  int n;
  cin >> n;
  if(n==1){
    cout << "0\n";
    return;
  }
  vector<ll> x(n), y(n);
  rep(i, n) cin >> x[i] >> y[i];
  vector<vector<ll>> d(n, vector<ll>(n));
  rep(i, n) REP(j, i + 1, n)
  {
    d[i][j] = (x[i] - x[j]) * (x[i] - x[j]) + (y[i] - y[j]) * (y[i] - y[j]);
  }

  vector<int> dp(1 << n);
  rep(i, 1 << n) dp[i] = __builtin_popcount(i);
  // bitがk個立っているものを走査
  for (int k = 0; k <= n - 2; k++)
  {
    for (int msk = (1 << k) - 1; msk < (1 << n); msk = nc(msk))
    {
      int d1, d2;
      ll Min = 8e18;
      rep(i, n) REP(j, i + 1, n)
      {
        if ((msk & (1 << i)) or (msk & (1 << j)))
          continue;
        if (Min > d[i][j])
        {
          Min = d[i][j];
          d1 = i, d2 = j;
        }
      }
      assert(Min != 8e18);
      chmin(dp[msk | (1 << d1) | (1 << d2)], dp[msk]);
    }
  }

    cout << dp[(1 << n) - 1 - 1] << "\n";
}

int main()
{
  solve();
}
0