結果
問題 | No.788 トラックの移動 |
ユーザー | ミドリムシ |
提出日時 | 2019-02-08 22:41:57 |
言語 | C++11 (gcc 11.4.0) |
結果 |
CE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 2,453 bytes |
コンパイル時間 | 411 ms |
コンパイル使用メモリ | 65,696 KB |
最終ジャッジ日時 | 2024-04-27 02:48:44 |
合計ジャッジ時間 | 710 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。
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 function ‘std::vector<_Tp> dijkstra(WeightedGraph<T>&, int)’: main.cpp:37:22: error: ‘numeric_limits’ was not declared in this scope 37 | const auto INF = numeric_limits< T >::max(); | ^~~~~~~~~~~~~~ main.cpp:37:40: error: expected primary-expression before ‘>’ token 37 | const auto INF = numeric_limits< T >::max(); | ^ main.cpp:37:46: error: no matching function for call to ‘max()’ 37 | const auto INF = numeric_limits< T >::max(); | ~~~~~^~ In file included from /usr/include/c++/11/bits/char_traits.h:39, from /usr/include/c++/11/ios:40, from /usr/include/c++/11/ostream:38, from /usr/include/c++/11/iostream:39, from main.cpp:1: /usr/include/c++/11/bits/stl_algobase.h:254:5: note: candidate: ‘template<class _Tp> const _Tp& std::max(const _Tp&, const _Tp&)’ 254 | max(const _Tp& __a, const _Tp& __b) | ^~~ /usr/include/c++/11/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed: main.cpp:37:46: note: candidate expects 2 arguments, 0 provided 37 | const auto INF = numeric_limits< T >::max(); | ~~~~~^~ In file included from /usr/include/c++/11/bits/char_traits.h:39, from /usr/include/c++/11/ios:40, from /usr/include/c++/11/ostream:38, from /usr/include/c++/11/iostream:39, from main.cpp:1: /usr/include/c++/11/bits/stl_algobase.h:300:5: note: candidate: ‘template<class _Tp, class _Compare> const _Tp& std::max(const _Tp&, const _Tp&, _Compare)’ 300 | max(const _Tp& __a, const _Tp& __b, _Compare __comp) | ^~~ /usr/include/c++/11/bits/stl_algobase.h:300:5: note: template argument deduction/substitution failed: main.cpp:37:46: note: candidate expects 3
ソースコード
#include <iostream> #include <algorithm> #include <vector> #include <queue> #include <string.h> using namespace std; #define all(x) (x).begin(), (x).end() template< typename T > struct edge { int src, to; T cost; edge(int to, T cost) : src(-1), to(to), cost(cost) {} edge(int src, int to, T cost) : src(src), to(to), cost(cost) {} edge &operator=(const int &x) { to = x; return *this; } operator int() const { return to; } }; template< typename T > using Edges = vector< edge< T > >; template< typename T > using WeightedGraph = vector< Edges< T > >; using UnWeightedGraph = vector< vector< int > >; template< typename T > using Matrix = vector< vector< T > >; template< typename T > vector< T > dijkstra(WeightedGraph< T > &g, int s) { const auto INF = numeric_limits< T >::max(); vector< T > dist(g.size(), INF); using Pi = pair< T, int >; priority_queue< Pi, vector< Pi >, greater< Pi > > que; dist[s] = 0; que.emplace(dist[s], s); while(!que.empty()) { T cost; int idx; tie(cost, idx) = que.top(); que.pop(); if(dist[idx] < cost) continue; for(auto &e : g[idx]) { auto next_cost = cost + e.cost; if(dist[e.to] <= next_cost) continue; dist[e.to] = next_cost; que.emplace(dist[e.to], e.to); } } return dist; } int main(){ int N, M, L; cin >> N >> M >> L; int sum = 0; int t[N]; for(int i = 0; i < N; i++){ cin >> t[i]; sum += t[i]; } WeightedGraph<long> graph(N); for(int i = 0; i < M; i++){ int a, b, c; cin >> a >> b >> c; graph[a - 1].push_back(edge<long>(b - 1, c)); graph[b - 1].push_back(edge<long>(a - 1, c)); } vector<long> dist[N]; for(int i = 0; i < N; i++){ dist[i] = dijkstra(graph, i); } long ans = 1e18; for(int i = 0; i < N; i++){ if(sum == t[i]){ cout << 0 << endl; return 0; } long cost = 0; for(int j = 0; j < N; j++){ cost += dist[i][j] * t[j] * 2; } long this_ans = 1e18; for(int j = 0; j < N; j++){ if(!t[j]){ continue; } this_ans = min(this_ans, dist[L - 1][j] - dist[i][j]); } ans = min(ans, cost + this_ans); } cout << ans << endl; }