結果

問題 No.1065 電柱 / Pole (Easy)
ユーザー kissshot7kissshot7
提出日時 2021-01-14 18:29:27
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 236 ms / 2,000 ms
コード長 3,908 bytes
コンパイル時間 1,884 ms
コンパイル使用メモリ 178,512 KB
実行使用メモリ 27,520 KB
最終ジャッジ日時 2024-11-24 10:38:35
合計ジャッジ時間 7,641 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
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 9 ms
12,416 KB
testcase_01 AC 9 ms
12,416 KB
testcase_02 AC 120 ms
20,096 KB
testcase_03 AC 147 ms
27,400 KB
testcase_04 AC 154 ms
27,276 KB
testcase_05 AC 120 ms
27,272 KB
testcase_06 AC 120 ms
27,276 KB
testcase_07 AC 44 ms
16,128 KB
testcase_08 AC 147 ms
26,880 KB
testcase_09 AC 20 ms
13,568 KB
testcase_10 AC 69 ms
18,688 KB
testcase_11 AC 50 ms
16,768 KB
testcase_12 AC 30 ms
15,872 KB
testcase_13 AC 104 ms
21,884 KB
testcase_14 AC 137 ms
23,728 KB
testcase_15 AC 164 ms
25,092 KB
testcase_16 AC 73 ms
19,648 KB
testcase_17 AC 182 ms
26,160 KB
testcase_18 AC 53 ms
17,408 KB
testcase_19 AC 170 ms
25,208 KB
testcase_20 AC 46 ms
15,872 KB
testcase_21 AC 57 ms
18,944 KB
testcase_22 AC 147 ms
24,408 KB
testcase_23 AC 9 ms
12,672 KB
testcase_24 AC 10 ms
12,800 KB
testcase_25 AC 27 ms
15,872 KB
testcase_26 AC 79 ms
19,868 KB
testcase_27 AC 80 ms
20,080 KB
testcase_28 AC 142 ms
25,080 KB
testcase_29 AC 21 ms
14,720 KB
testcase_30 AC 166 ms
26,124 KB
testcase_31 AC 114 ms
22,800 KB
testcase_32 AC 71 ms
18,752 KB
testcase_33 AC 163 ms
26,748 KB
testcase_34 AC 54 ms
17,408 KB
testcase_35 AC 147 ms
26,508 KB
testcase_36 AC 9 ms
12,544 KB
testcase_37 AC 10 ms
12,800 KB
testcase_38 AC 9 ms
12,544 KB
testcase_39 AC 9 ms
12,928 KB
testcase_40 AC 8 ms
12,544 KB
testcase_41 AC 236 ms
27,520 KB
testcase_42 AC 64 ms
17,024 KB
testcase_43 AC 117 ms
20,352 KB
testcase_44 AC 43 ms
15,232 KB
testcase_45 AC 118 ms
20,224 KB
testcase_46 AC 9 ms
12,544 KB
testcase_47 AC 8 ms
12,416 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 <bits/stdc++.h>
using namespace std;

//#define int long long
typedef long long ll;

typedef unsigned long long ul;
typedef unsigned int ui;
const ll mod = 1000000007;
// const ll mod = 998244353;
const ll INF = mod * mod;
const int INF_N = 1e+9;
typedef pair<int, int> P;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef long double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acos(-1.0);
//typedef vector<vector<ll>> mat;
typedef vector<int> vec;

//繰り返し二乗法
ll mod_pow(ll a, ll n, ll m) {
	ll res = 1;
	while (n) {
		if (n & 1)res = res * a%m;
		a = a * a%m; n >>= 1;
	}
	return res;
}

struct modint {
	ll n;
	modint() :n(0) { ; }
	modint(ll m) :n(m) {
		if (n >= mod)n %= mod;
		else if (n < 0)n = (n%mod + mod) % mod;
	}
	operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint &a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint &a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint &a, modint b) { a.n = ((ll)a.n*b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, int n) {
	if (n == 0)return modint(1);
	modint res = (a*a) ^ (n / 2);
	if (n % 2)res = res * a;
	return res;
}

//逆元(Eucledean algorithm)
ll inv(ll a, ll p) {
	return (a == 1 ? 1 : (1 - p * inv(p%a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }

const int max_n = 1 << 18;
modint fact[max_n], factinv[max_n];
void init_f() {
	fact[0] = modint(1);
	for (int i = 0; i < max_n - 1; i++) {
		fact[i + 1] = fact[i] * modint(i + 1);
	}
	factinv[max_n - 1] = modint(1) / fact[max_n - 1];
	for (int i = max_n - 2; i >= 0; i--) {
		factinv[i] = factinv[i + 1] * modint(i + 1);
	}
}
modint comb(int a, int b) {
	if (a < 0 || b < 0 || a < b)return 0;
	return fact[a] * factinv[b] * factinv[a - b];
}
using mP = pair<modint, modint>;

int dx[4] = { 0,1,0,-1 };
int dy[4] = { 1,0,-1,0 };


typedef pair<double, int> PP;
// 負の閉路がある場合は使用不可
const int MAX_V=200005;
// const int MAX_V=2005;

struct edge {
    int to;
    double cost;
};

// <最短距離, 頂点の番号>
// using P = pair<int, int>;

int V;
vector<edge> G[MAX_V];
double d[MAX_V];
int pre[MAX_V];

void dijkstra(int s) {
    priority_queue<PP, vector<PP>, greater<PP> > que;
    fill(d, d+V, INF);
    fill(pre, pre+V, -1);
    d[s] = 0;
    que.push(PP(0, s));

    while (!que.empty()) {
        PP p = que.top();
        que.pop();
        int v = p.second;
        if (d[v] < p.first) continue;

        for (int i=0; i<G[v].size(); ++i) {
            edge e = G[v][i];
            if (d[e.to] > d[v] + e.cost) {
                d[e.to] = d[v] + e.cost;
                pre[e.to] = v;
                que.push(PP(d[e.to], e.to));
            }
        }
    }
}

void solve() {
    int n, m; cin >> n >> m;
    V = n;
    int x, y; cin >> x >> y;
    x--; y--;
    vector<double> p(n), q(n);
    rep(i, n) cin >> p[i] >> q[i];
    rep(i, m){
        int a, b; cin >> a >> b;
        a--; b--;
        double d = sqrt((p[a]-p[b])*(p[a]-p[b]) + (q[a]-q[b])*(q[a]-q[b]));
        G[a].push_back({b, d});
        G[b].push_back({a, d});
    }

    dijkstra(x);

    cout << d[y] << endl;
}

signed main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout << fixed << setprecision(10);
  //init_f();
  //init();
  //int t; cin >> t; rep(i, t)solve();
  solve();
//   stop
    return 0;
}
0