結果

問題 No.1065 電柱 / Pole (Easy)
ユーザー ganariyaganariya
提出日時 2020-05-29 22:06:18
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 442 ms / 2,000 ms
コード長 8,192 bytes
コンパイル時間 1,848 ms
コンパイル使用メモリ 162,920 KB
実行使用メモリ 24,844 KB
最終ジャッジ日時 2024-11-06 04:55:18
合計ジャッジ時間 10,470 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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 2 ms
6,816 KB
testcase_01 AC 2 ms
6,820 KB
testcase_02 AC 200 ms
14,096 KB
testcase_03 AC 270 ms
23,252 KB
testcase_04 AC 268 ms
23,280 KB
testcase_05 AC 216 ms
22,060 KB
testcase_06 AC 218 ms
22,556 KB
testcase_07 AC 78 ms
8,960 KB
testcase_08 AC 293 ms
24,184 KB
testcase_09 AC 26 ms
6,820 KB
testcase_10 AC 128 ms
12,544 KB
testcase_11 AC 89 ms
9,856 KB
testcase_12 AC 51 ms
7,168 KB
testcase_13 AC 191 ms
14,844 KB
testcase_14 AC 220 ms
17,212 KB
testcase_15 AC 256 ms
19,128 KB
testcase_16 AC 121 ms
11,700 KB
testcase_17 AC 289 ms
20,216 KB
testcase_18 AC 85 ms
9,472 KB
testcase_19 AC 277 ms
19,628 KB
testcase_20 AC 72 ms
7,980 KB
testcase_21 AC 108 ms
10,624 KB
testcase_22 AC 249 ms
18,204 KB
testcase_23 AC 4 ms
6,816 KB
testcase_24 AC 4 ms
6,816 KB
testcase_25 AC 45 ms
6,912 KB
testcase_26 AC 143 ms
12,840 KB
testcase_27 AC 144 ms
12,504 KB
testcase_28 AC 245 ms
18,432 KB
testcase_29 AC 28 ms
6,820 KB
testcase_30 AC 268 ms
20,136 KB
testcase_31 AC 188 ms
16,284 KB
testcase_32 AC 118 ms
11,448 KB
testcase_33 AC 259 ms
21,272 KB
testcase_34 AC 92 ms
9,472 KB
testcase_35 AC 271 ms
20,452 KB
testcase_36 AC 4 ms
6,820 KB
testcase_37 AC 4 ms
6,820 KB
testcase_38 AC 4 ms
6,820 KB
testcase_39 AC 4 ms
6,820 KB
testcase_40 AC 2 ms
6,820 KB
testcase_41 AC 442 ms
24,844 KB
testcase_42 AC 116 ms
10,112 KB
testcase_43 AC 213 ms
14,848 KB
testcase_44 AC 69 ms
7,680 KB
testcase_45 AC 207 ms
14,464 KB
testcase_46 AC 2 ms
6,816 KB
testcase_47 AC 2 ms
6,820 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 #

//include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <unordered_map>
#include <climits>
#include <set>
#include <unordered_set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <queue>
#include <random>
#include <chrono>
#include <complex>
#include <regex>
#include <locale>
#include <random>
#include <cassert>
#include <type_traits>

using namespace std;

// typedef
//------------------------------------------
typedef long long LL;
typedef vector<int> VI;
typedef vector<bool> VB;
typedef vector<char> VC;
typedef vector<double> VD;
typedef vector<string> VS;
typedef vector<LL> VLL;
typedef vector<VI> VVI;
typedef vector<VB> VVB;
typedef vector<VS> VVS;
typedef vector<VLL> VVLL;
typedef vector<VVI> VVVI;
typedef vector<VVLL> VVVLL;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef pair<int, string> PIS;
typedef pair<string, int> PSI;
typedef pair<string, string> PSS;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;
typedef vector<VPII> VVPII;
typedef vector<VPLL> VVPLL;
typedef vector<VS> VVS;
typedef map<int, int> MII;
typedef map<LL, LL> MLL;
typedef map<string, int> MSI;
typedef map<int, string> MIS;

// container util
//------------------------------------------

#define ALL(a)  (a).begin(),(a).end()
#define SZ(a) int((a).size())
#define EACH(i, arr) for(typeof((arr).begin()) i=(arr).begin(); i!=(arr).end(); ++i)
#define EXIST(str, e) ((str).find(e)!=(str).end())
#define COUNT(arr, v) count((arr).begin(), (arr).end(), v)
#define SEARCH(v, w) search((v).begin(), (v).end(), (w).begin(), (w).end())
#define SORT(c) sort((c).begin(),(c).end())
#define RSORT(c) sort((c).rbegin(),(c).rend())
#define REVERSE(c) reverse((c).begin(), (c).end())
#define ROTATE_LEFT(arr, c) rotate((arr).begin(), (arr).begin()+(c), (arr).end())
#define ROTATE_RIGHT(arr, c) rotate((arr).rbegin(), (arr).rbegin() + (c), (arr).rend())
#define SUMI(arr) accumulate((arr).begin(), (arr).end(), 0)
#define SUMD(arr) accumulate((arr).begin(), (arr).end(), 0.)
#define SUMLL(arr) accumulate((arr).begin(), (arr).end(), 0LL)
#define MULD(arr) accumulate((arr).begin(), (arr).end(), 1., multiplies<double>())
#define UB(arr, n) upper_bound((arr).begin(), (arr).end(), n)
#define LB(arr, n) lower_bound((arr).begin(), (arr).end(), n)
#define PB push_back
#define MP make_pair
#define ft first
#define sd second


// input output
//------------------------------------------
#define GL(s) getline(cin, (s))
#define INIT() std::ios::sync_with_stdio(false);std::cin.tie(0)
#define OUT(d) std::cout<<(d)
#define OUT_L(d) std::cout<<(d)<<endl
#define FOUT(n, data) std::cout<<std::fixed<<std::setprecision(n)<<(data)
#define FOUT_L(n, data) std::cout<<std::fixed<<std::setprecision(n)<<(data)<<"\n"
#define EL() printf("\n")
#define SHOW_VECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";}
#define SHOW_MAP(v) {std::cerr << #v << endl; for(const auto& xxx: v){std::cerr << xxx.first << " " << xxx.second << "\n";}}
#define Yes() printf("Yes\n")
#define No() printf("No\n")
#define YES() printf("YES\n")
#define NO() printf("NO\n")
#define Yay() printf("Yay!\n")
#define Nnn() printf(":(\n")
#define CE(x, y) ((x + y - 1) / (y))


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

template<typename T>
istream &operator>>(istream &in, vector<T> &v) {
    for (auto &x: v)
        in >> x;
    return in;
}


template<typename T1, typename T2>
ostream &operator<<(ostream &out, const std::pair<T1, T2> &p) {
    out << "[" << p.first << ", " << p.second << "]" << "\n";
    return out;
}

template<class T1, class T2>
inline bool chmin(T1 &a, T2 b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

template<class T1, class T2>
inline bool chmax(T1 &a, T2 b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}


//repetition
//------------------------------------------
#define FOR(i, a, b) for(int i=(a);i<(b);++i)
#define RFOR(i, a, b) for(int i=(b)-1;i>=(a);--i)
#define REP(i, n)  FOR(i,0,n)
#define RREP(i, n) for(int i = n-1;i >= 0;i--)
#define FORLL(i, a, b) for(LL i=LL(a);i<LL(b);++i)
#define RFORLL(i, a, b) for(LL i=LL(b)-1;i>=LL(a);--i)
#define REPLL(i, n) for(LL i=0;i<LL(n);++i)
#define RREPLL(i, n) for(LL i=LL(n)-1;i>=0;--i)
#define FOREACH(x, arr) for(auto &(x) : (arr))

// Option + Control + K  Terminal
// Command + Control + K    Run
// Command + b   EOF



//------------------------------------------
//------------------------------------------

template<class T>
struct Edge {
    int from, to;
    T cost;

    Edge(int from, int to, T cost) : from(from), to(to), cost(cost) {}

    explicit operator int() const { return to; }
};

template<class T>
using Edges = vector<Edge<T>>;

template<class T>
using WeightedGraph = vector<Edges<T>>;

using UnWeightedGraph = vector<vector<int>>;

template<class T>
using DistMatrix = vector<vector<T>>;

struct GraphAdapter {
    template<class T>
    static UnWeightedGraph to_unweighted_graph(const WeightedGraph<T> &origin) {
        int V = origin.size();
        UnWeightedGraph graph(V);
        for (int i = 0; i < V; i++) for (auto &e: origin[i]) graph[i].push_back((int) e);
        return graph;
    }

    static WeightedGraph<int> to_weighted_graph(const UnWeightedGraph &origin) {
        int V = origin.size();
        WeightedGraph<int> graph(V);
        for (int i = 0; i < V; i++) for (auto to: origin[i]) graph[i].push_back({i, to, 1});
        return graph;
    }

    template<class T>
    static DistMatrix<T> to_dist_matrix(const WeightedGraph<T> &origin, T INF) {
        int V = origin.size();
        DistMatrix<T> matrix(V, vector<T>(V, INF));
        for (int i = 0; i < V; i++) for (auto &e:origin[i]) matrix[i][e.to] = e.cost;
        for (int i = 0; i < V; i++) matrix[i][i] = 0;
        return matrix;
    }
};

template<typename T>
class Dijkstra {
    using Pr = pair<T, int>;
private:
    int V;
    const WeightedGraph<T> &graph;
    const T INF = numeric_limits<T>::max();
    vector<T> dist;
    vector<int> prev;

public:

    Dijkstra(const WeightedGraph<T> &graph, int s) : graph(graph) {
        V = graph.size();
        dijkstra(s);
    }

    void dijkstra(int s) {
        priority_queue<Pr, vector<Pr>, greater<>> Q;
        dist = vector<T>(V, INF);
        prev = vector<int>(V, -1);
        Q.push(make_pair(0, s));
        dist[s] = 0;
        while (!Q.empty()) {
            auto p = Q.top();
            Q.pop();
            T now = p.first;
            int v = p.second;
            if (dist[v] < now)continue;
            for (auto e: graph[v]) {
                int to = e.to;
                T cost = e.cost;
                if (dist[to] > dist[v] + cost) {
                    dist[to] = dist[v] + cost;
                    prev[to] = v;
                    Q.push(make_pair(dist[to], to));
                }
            }
        }
    }

    vector<T> get_dist() const {
        return dist;
    }

    vector<int> get_prev() const {
        return prev;
    }

};

double get_dist(double x1, double y1, double x2, double y2) {
    double dx = x1 - x2;
    double dy = y1 - y2;
    return sqrt(dx * dx + dy * dy);
}

int main() {

    int N, M;
    cin >> N >> M;

    int X, Y;
    cin >> X >> Y;

    X--, Y--;


    vector<double> p(N), q(N);
    REP(i, N) cin >> p[i] >> q[i];

    WeightedGraph<double> G(N);
    for (int i = 0; i < M; i++) {
        int a, b;
        cin >> a >> b;
        a--, b--;
        double d = get_dist(p[a], q[a], p[b], q[b]);
        G[a].push_back({a, b, d});
        G[b].push_back({b, a, d});
    }

    auto di = Dijkstra<double>(G, X);
    auto dist = di.get_dist();

    cout << fixed << setprecision(10) << dist[Y] << endl;

}



























































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