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 te-sh
提出日時 2020-01-22 03:41:09
言語 D
(dmd 2.109.1)
結果
WA  
実行時間 -
コード長 3,516 bytes
コンパイル時間 1,354 ms
コンパイル使用メモリ 147,196 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-06-22 04:23:47
合計ジャッジ時間 2,220 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
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ファイルパターン 結果
other AC * 21 WA * 6
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ソースコード

diff # 

// URL: https://yukicoder.me/problems/no/17

import std.algorithm, std.array, std.container, std.math, std.range, std.typecons, std.string;

version(unittest) {} else
void main()
{
  int N; io.getV(N);
  int[] S; io.getC(N, S);

  auto g = GraphM!int.init(N);

  int M; io.getV(M);
  foreach (_; 0..M) {
    int A, B, C; io.getV(A, B, C);
    g[A][B] = g[B][A] = C;
  }
  auto dist = g.floydWarshal.dist;

  auto r = g.inf;
  foreach (i; 1..N-1)
    foreach (j; 1..N-1)
      if (i != j)
        r = min(r, dist[0][i] + S[i] + dist[i][j] + S[j] + dist[j][N-1]);
  io.put(r);
}

struct Graph
{
  alias Node = int;
  Node n;
  Node[][] g;
  alias g this;
  this(Node n) { this.n = n; g = new Node[][](n); }
  void addEdge(Node u, Node v) { g[u] ~= v; }
  void addEdgeB(Node u, Node v) { g[u] ~= v; g[v] ~= u; }
}

struct GraphW(W = int, W i = 10^^9)
{
  alias Node = int, Wt = W, inf = i;
  struct Edge { Node src, dst; Wt wt; alias cap = wt; }
  Node n;
  Edge[][] g;
  alias g this;
  this(Node n) { this.n = n; g = new Edge[][](n); }
  void addEdge(Node u, Node v, Wt w) { g[u] ~= Edge(u, v, w); }
  void addEdgeB(Node u, Node v, Wt w) { g[u] ~= Edge(u, v, w); g[v] ~= Edge(v, u, w); }
}

struct GraphM(W = int, W i = 10^^9)
{
  alias Node = int, Wt = W, inf = i;
  Node n;
  Wt[][] g;
  alias g this;
  this(int n) { this.n = n; g = new Wt[][](n, n); }
  static GraphM!(W, i) init(Node n)
  {
    auto g = GraphM!(W, i)(n);
    foreach (i; 0..n) { g[i][] = inf; g[i][i] = 0; }
    return g;
  }
}

struct FloydWarshal(Graph)
{
  alias Wt = Graph.Wt;
  Graph g;
  alias g this;
  Wt[][] dist;

  this(Graph g)
  {
    this.g = g;
    dist = g.g.map!(i => i.dup).array;

    foreach (k; 0..n)
      foreach (i; 0..n)
        foreach (j; 0..n)
          if (dist[i][j] > dist[i][k] + dist[k][j])
            dist[i][j] = dist[i][k] + dist[k][j];
  }
}
FloydWarshal!Graph floydWarshal(Graph)(Graph g)
{ return FloydWarshal!Graph(g); }

auto io = IO!()();
import std.stdio;
struct IO(alias IN = stdin, alias OUT = stdout, string delimiter = " ", string floatFormat = "%.10f")
{
  import std.conv, std.format, std.meta, std.traits;
  alias assignable = hasAssignableElements;

  auto getV(T...)(ref T v) { foreach (ref w; v) get(w); }
  auto getA(T)(size_t n, ref T v) if (assignable!T) { v = new T(n); foreach (ref w; v) get(w); }
  auto getC(T...)(size_t n, ref T v) if (allSatisfy!(assignable, T))
  {
    foreach (ref w; v) w = new typeof(w)(n);
    foreach (i; 0..n) foreach (ref w; v) get(w[i]);
  }
  auto getM(T)(size_t r, size_t c, ref T v) if (assignable!T && assignable!(ElementType!T))
  {
    v = new T(r); foreach (ref w; v) getA(c, w);
  }

  auto put(bool flush = false, T...)(T v)
  {
    foreach (i, w; v) { putA(w); if (i < v.length-1) OUT.write(delimiter); }
    OUT.writeln;
    static if (flush) OUT.flush();
  }
  auto putB(S, T)(bool c, S t, T f) { if (c) put(t); else put(f); }
  auto putRaw(T...)(T v) { OUT.write(v); OUT.writeln; }

  private
  {
    dchar[] buf;
    auto sp = (new dchar[](0)).splitter;
    void nextLine() { IN.readln(buf); sp = buf.splitter; }
    auto get(T)(ref T v) { if (sp.empty) nextLine(); v = sp.front.to!T; sp.popFront(); }

    auto putR(T)(T v)
    {
      auto w = v;
      while (!w.empty) { putA(w.front); w.popFront(); if (!w.empty) OUT.write(delimiter); }
    }
    auto putA(T)(T v)
    {
      static if (isInputRange!T && !isSomeString!T) putR(v);
      else if (isFloatingPoint!T) OUT.write(format(floatFormat, v));
      else OUT.write(v);
    }
  }
}
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