結果
| 問題 | No.17 2つの地点に泊まりたい | 
| コンテスト | |
| ユーザー |  not_522 | 
| 提出日時 | 2015-07-16 21:02:52 | 
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) | 
| 結果 | 
                                WA
                                 
                             | 
| 実行時間 | - | 
| コード長 | 3,988 bytes | 
| コンパイル時間 | 1,480 ms | 
| コンパイル使用メモリ | 171,888 KB | 
| 実行使用メモリ | 5,376 KB | 
| 最終ジャッジ日時 | 2024-07-08 08:13:37 | 
| 合計ジャッジ時間 | 2,402 ms | 
| ジャッジサーバーID (参考情報) | judge4 / judge2 | 
(要ログイン)
| ファイルパターン | 結果 | 
|---|---|
| other | AC * 17 WA * 10 | 
ソースコード
#include <bits/stdc++.h>
using namespace std;
struct Edge {
  typedef int CostType;
  const static int cost = 1;
  int from, to;
  Edge(int from, int to) : from(from), to(to) {};
};
template<typename Cost> struct WeightedEdge : public Edge {
  typedef Cost CostType;
  Cost cost;
  WeightedEdge(int from, int to, Cost cost = 0) : Edge(from, to), cost(cost) {}
};
template<typename Capacity> struct ResidualEdge : public Edge {
  typedef Capacity CapacityType;
  Capacity cap;
  int rev;
  ResidualEdge(int from, int to, Capacity cap) : Edge(from, to), cap(cap) {}
  ResidualEdge reverse() const {return ResidualEdge(to, from, 0);}
};
template<typename Capacity, typename Cost> struct WeightedResidualEdge : public ResidualEdge<Capacity> {
  Cost cost;
  WeightedResidualEdge(int from, int to, Capacity cap, Cost cost) : ResidualEdge<Capacity>(from, to, cap), cost(cost) {}
  WeightedResidualEdge reverse() const {return WeightedResidualEdge(this->to, this->from, 0, -cost);}
};
template<typename Edge> class Graph {
public:
  typedef Edge EdgeType;
  virtual int size() const = 0;
  template<typename... Args> void addEdge(Args...) {}
  template<typename... Args> void addUndirectedEdge(Args...) {}
  virtual vector<Edge> getEdges() const = 0;
  virtual vector<Edge> getEdges(int from) const = 0;
  virtual vector<Edge> getEdges(int from, int to) const = 0;
  virtual int getDegree(int v) const = 0;
};
template<typename Edge> class AdjacencyList : public Graph<Edge> {
protected:
  vector<vector<Edge>> graph;
public:
  AdjacencyList(int n) : graph(n) {}
  int size() const {
    return graph.size();
  }
  
  template<typename... Args> void addEdge(Args... args) {
    Edge edge(args...);
    graph[edge.from].emplace_back(edge);
  }
  template<typename... Args> void addUndirectedEdge(Args... args) {
    Edge edge(args...);
    addEdge(edge);
    swap(edge.from, edge.to);
    addEdge(edge);
  }
  vector<Edge> getEdges() const {
    vector<Edge> res;
    for (const auto& edges : graph) {
      res.insert(res.end(), edges.begin(), edges.end());
    }
    return res;
  }
  vector<Edge> getEdges(int from) const {
    return graph[from];
  }
  vector<Edge> getEdges(int from, int to) const {
    vector<Edge> res;
    for (const auto& edge : graph[from]) {
      if (edge.to == to) res.emplace_back(edge);
    }
    return res;
  }
  int getDegree(int v) const {
    return graph[v].size();
  }
  vector<Edge>& operator[](int v) {
    return graph[v];
  }
};
template<typename Graph> class WarshallFloyd {
private:
  typedef typename Graph::EdgeType::CostType Cost;
  const Cost INF = numeric_limits<Cost>::max() / 2 - 1;
  const Graph& graph;
public:
  vector<vector<Cost>> dis;
  
  WarshallFloyd(const Graph& graph) : graph(graph), dis(graph.size(), vector<Cost>(graph.size(), INF)) {
    for (int i = 0; i < graph.size(); ++i) dis[i][i] = 0;
  }
  
  void solve() {
    for (const auto& edge : graph.getEdges()) {
      dis[edge.from][edge.to] = min(dis[edge.from][edge.to], edge.cost);
    }
    for (int k = 0; k < graph.size(); ++k) {
      for (int i = 0; i < graph.size(); ++i) {
        for (int j = 0; j < graph.size(); ++j) {
          dis[i][j] = min(dis[i][j], dis[i][k] + dis[k][j]);
        }
      }
    }
  }
};
template<typename Graph> inline WarshallFloyd<Graph> shortestPath(Graph& graph) {
  WarshallFloyd<Graph> warshallFloyd(graph);
  warshallFloyd.solve();
  return warshallFloyd;
}
int main() {
  int n;
  cin >> n;
  vector<int> s(n);
  for (int& i : s) cin >> i;
  AdjacencyList<WeightedEdge<int>> graph(n);
  int m;
  cin >> m;
  for (int i = 0; i < m; ++i) {
    int a, b, c;
    cin >> a >> b >> c;
    graph.addUndirectedEdge(a, b, c);
  }
  auto dis = shortestPath(graph).dis;
  int res = numeric_limits<int>::max();
  for (int i = 1; i < n - 1; ++i) {
    for (int j = 1; j < n - 1; ++j) {
      if (i == j) continue;
      res = min(res, dis[0][i] + dis[i][j] + dis[j][n - 1] + s[i] + s[j]);
    }
  }
  cout << res << endl;
}
            
            
            
        