結果

問題 No.1065 電柱 / Pole (Easy)
ユーザー stoqstoq
提出日時 2020-11-04 04:27:42
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 218 ms / 2,000 ms
コード長 3,812 bytes
コンパイル時間 2,248 ms
コンパイル使用メモリ 214,480 KB
実行使用メモリ 22,600 KB
最終ジャッジ日時 2023-09-29 15:30:05
合計ジャッジ時間 10,095 ms
ジャッジサーバーID
(参考情報)
judge12 / judge14
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 1 ms
4,380 KB
testcase_01 AC 2 ms
4,380 KB
testcase_02 AC 84 ms
12,876 KB
testcase_03 AC 115 ms
21,216 KB
testcase_04 AC 113 ms
22,600 KB
testcase_05 AC 87 ms
21,488 KB
testcase_06 AC 88 ms
22,332 KB
testcase_07 AC 27 ms
8,088 KB
testcase_08 AC 99 ms
21,484 KB
testcase_09 AC 10 ms
4,948 KB
testcase_10 AC 45 ms
11,324 KB
testcase_11 AC 31 ms
8,516 KB
testcase_12 AC 20 ms
6,900 KB
testcase_13 AC 91 ms
13,968 KB
testcase_14 AC 109 ms
16,496 KB
testcase_15 AC 133 ms
18,056 KB
testcase_16 AC 54 ms
10,940 KB
testcase_17 AC 128 ms
19,228 KB
testcase_18 AC 38 ms
8,824 KB
testcase_19 AC 124 ms
18,540 KB
testcase_20 AC 32 ms
7,616 KB
testcase_21 AC 46 ms
10,520 KB
testcase_22 AC 118 ms
17,268 KB
testcase_23 AC 2 ms
4,376 KB
testcase_24 AC 3 ms
4,376 KB
testcase_25 AC 19 ms
6,404 KB
testcase_26 AC 62 ms
12,228 KB
testcase_27 AC 64 ms
11,884 KB
testcase_28 AC 122 ms
17,656 KB
testcase_29 AC 13 ms
5,856 KB
testcase_30 AC 130 ms
19,356 KB
testcase_31 AC 88 ms
15,540 KB
testcase_32 AC 54 ms
10,728 KB
testcase_33 AC 124 ms
20,656 KB
testcase_34 AC 43 ms
8,936 KB
testcase_35 AC 131 ms
19,728 KB
testcase_36 AC 2 ms
4,376 KB
testcase_37 AC 2 ms
4,376 KB
testcase_38 AC 3 ms
4,380 KB
testcase_39 AC 3 ms
4,380 KB
testcase_40 AC 2 ms
4,376 KB
testcase_41 AC 218 ms
22,248 KB
testcase_42 AC 47 ms
8,844 KB
testcase_43 AC 101 ms
13,036 KB
testcase_44 AC 29 ms
6,904 KB
testcase_45 AC 90 ms
12,780 KB
testcase_46 AC 2 ms
4,376 KB
testcase_47 AC 2 ms
4,376 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 int INF = (int)1e9 + 10;
constexpr ll LINF = (ll)4e18;
constexpr double PI = acos(-1.0);
constexpr double EPS = 1e-7;
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 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

template <typename T>
struct dijkstra
{
  int V;
  T INF_d;
  struct edge
  {
    int to;
    T cost;
  };
  vector<vector<edge>> E;
  vector<T> d;
  using pt = pair<T, int>;
  dijkstra(int V_) : V(V_)
  {
    E.resize(V);
    d.resize(V);
    if (is_same<int, T>::value)
      INF_d = 2e9;
    else
      INF_d = 8e18;
  }

  void add_E(int a, int b, T c = 1, bool directed = true)
  {
    E[a].emplace_back(edge{b, c});
    if (!directed)
      E[b].emplace_back(edge{a, c});
  }

  void calc(int s)
  {
    priority_queue<pt, vector<pt>, greater<pt>> que;
    fill(d.begin(), d.end(), INF_d);
    que.emplace(T(0), s);
    d[s] = 0;
    while (!que.empty())
    {
      pt p = que.top();
      que.pop();
      int v = p.second;
      if (d[v] < p.first)
        continue;
      for (auto &&e : E[v])
      {
        if (d[e.to] > d[v] + e.cost)
        {
          d[e.to] = d[v] + e.cost;
          que.emplace(d[e.to], e.to);
        }
      }
    }
  }
};

void solve()
{
  int n, m;
  cin >> n >> m;
  int x, y;
  cin >> x >> y;
  x--, y--;
  vector<ll> p(n), q(n);
  rep(i, n) cin >> p[i] >> q[i];
  dijkstra<double> ds(n);
  rep(i, m)
  {
    int u, v;
    cin >> u >> v;
    u--, v--;
    double cost = sqrt((p[u] - p[v]) * (p[u] - p[v]) + (q[u] - q[v]) * (q[u] - q[v]));
    ds.add_E(u, v, cost, 0);
  }
  ds.calc(x);
  cout << ds.d[y] << "\n";
}

int main()
{
  solve();
}
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