結果

問題 No.1065 電柱 / Pole (Easy)
ユーザー FF256grhyFF256grhy
提出日時 2020-05-29 21:45:57
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 2,947 bytes
コンパイル時間 2,434 ms
コンパイル使用メモリ 201,868 KB
最終ジャッジ日時 2024-11-14 22:35:32
合計ジャッジ時間 5,157 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
main.cpp: In instantiation of 'std::istream& operator>>(std::istream&, std::vector<_Tp>&) [with T = std::pair<int, int>; std::istream = std::basic_istream<char>]':
main.cpp:72:9:   required from here
main.cpp:42:86: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'std::pair<int, int>')
   42 | template<typename T> istream & operator>>(istream & s, vector<T> & v) { RF(e, v) { s >> e; } return s; }
      |                                                                                    ~~^~~~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/sstream:38,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/complex:45,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ccomplex:39,
                 from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/x86_64-pc-linux-gnu/bits/stdc++.h:54,
                 from main.cpp:1:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/istream:120:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]'
  120 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/istream:120:36: note:   no known conversion for argument 1 from 'std::pair<int, int>' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'}
  120 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/istream:124:7: note: candidate: 'std::basic_istream<_CharT, _Traits>:

ソースコード

diff # 

#include <bits/stdc++.h>
using namespace std;
using LL = long long int;
#define incID(i, l, r) for(int i = (l)    ; i <  (r); ++i)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); ++i)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); --i)
#define inc(i, n)  incID(i, 0, n)
#define dec(i, n)  decID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec1(i, n) decII(i, 1, n)
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))
#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second
#define FR front()
#define BA back()
#define ALL(v) v.begin(), v.end()
#define RALL(v) v.rbegin(), v.rend()
auto setmin   = [](auto & a, auto b) { return (b <  a ? a = b, true : false); };
auto setmax   = [](auto & a, auto b) { return (b >  a ? a = b, true : false); };
auto setmineq = [](auto & a, auto b) { return (b <= a ? a = b, true : false); };
auto setmaxeq = [](auto & a, auto b) { return (b >= a ? a = b, true : false); };
#define SI(v) static_cast<int>(v.size())
#define RF(e, v) for(auto & e: v)
#define until(e) while(! (e))
#define if_not(e) if(! (e))
#define ef else if
#define UR assert(false)
#define IN(T, ...) T __VA_ARGS__; IN_(__VA_ARGS__);
void IN_() { };
template<typename T, typename ... U> void IN_(T &  a, U &  ... b) { cin >> a; IN_(b ...); };
template<typename T                > void OUT(T && a            ) { cout << a << endl; }
template<typename T, typename ... U> void OUT(T && a, U && ... b) { cout << a << " "; OUT(b ...); }

// ---- ----

template<typename T> istream & operator>>(istream & s, vector<T> & v) { RF(e, v) { s >> e; } return s; }
template<typename T> ostream & operator<<(ostream & s, vector<T> const & v) {
	inc(i, SI(v)) { s << (i == 0 ? "" : " ") << v[i]; }
	return s;
}
template<typename T, typename U> istream & operator>>(istream & s, pair<T, U> & p) { return (s >> p.FI >> p.SE); }
template<typename T, typename U> ostream & operator<<(ostream & s, pair<T, U> const & p) { return (s << p.FI << " " << p.SE); }

template<typename T> using LPQ = priority_queue<T, vector<T>, greater<T>>;
template<typename C> void dijkstra(int s, vector<vector<pair<int, C>>> const & g, vector<C> & d) {
	LPQ<pair<C, int>> q;
	d[s] = 0;
	q.emplace(d[s], s);
	while(! q.empty()) {
		C   c = q.top().FI;
		int v = q.top().SE;
		q.pop();
		if(d[v] != c) { continue; }
		for(auto & e : g[v]) {
			int ev = e.FI;
			C   ec = e.SE;
			if(setmin(d[ev], d[v] + ec)) { q.emplace(d[ev], ev); }
		}
	}
}

int main() {
	IN(int, n, m, x, y);
	x--; y--;
	vector<pair<int, int>> p(n);
	cin >> p;
	vector<vector<pair<int, double>>> g(n);
	inc(i, m) {
		IN(int, a, b);
		a--; b--;
		double d = hypot(p[a].FI - p[b].FI, p[a].SE - p[b].SE);
		g[a].EB(b, d);
		g[b].EB(a, d);
	}
	const double INF = 1e9;
	vector<double> d(n, INF);
	dijkstra(x, g, d);
	OUT(d[y]);
}
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