結果
問題 |
No.3013 ハチマキ買い星人
|
ユーザー |
|
提出日時 | 2025-01-25 13:15:56 |
言語 | C# (.NET 8.0.404) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,093 bytes |
コンパイル時間 | 11,786 ms |
コンパイル使用メモリ | 172,052 KB |
実行使用メモリ | 196,628 KB |
最終ジャッジ日時 | 2025-01-25 22:42:17 |
合計ジャッジ時間 | 104,102 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge9 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 16 TLE * 29 |
コンパイルメッセージ
復元対象のプロジェクトを決定しています... /home/judge/data/code/main.csproj を復元しました (118 ミリ秒)。 main -> /home/judge/data/code/bin/Release/net8.0/main.dll main -> /home/judge/data/code/bin/Release/net8.0/publish/
ソースコード
#nullable enable using System.Numerics; object? Solve() { var n = Int(); var m = Int(); var p = Int(); var y = long.Parse(String()); var adjl = new Memory<(int, long)>[n].AsSpan(); { var adjlo = n.Repeat(() => new List<(int, long)>()); for (var i = 0; i < m; i++) { var u = Int() - 1; var v = Int() - 1; var c = Int(); adjlo[u].Add((v, c)); adjlo[v].Add((u, c)); } for (var i = 0; i < n; i++) adjl[i] = adjlo[i].ToArray(); } var shops = new int[n].AsSpan(); shops.Fill(int.MaxValue); for (var i = 0; i < p; i++) shops[Int() - 1] = Int(); bool F(long x, Span<int> shops, Span<Memory<(int, long)>> adjl) { var q = new PriorityQueue<(int v, long yl), long>(); var byz = new long[n].AsSpan(); q.Enqueue((0, y), -y); byz[0] = y; while (q.Count > 0) { var (v, yl) = q.Dequeue(); if (yl < byz[v]) continue; if (yl / x >= shops[v]) return true; var adjz = adjl[v].Span; foreach (var (next, c) in adjz) { var ny = Math.Max(yl - c, 0); if (byz[next] < ny) { byz[next] = ny; q.Enqueue((next, ny), -ny); } } } return false; } var pass = 0L; var fail = y + 1; while (Math.Abs(pass - fail) > 1) { var middle = (pass + fail) >> 1; if (F(middle, shops, adjl)) pass = middle; else fail = middle; } return pass; } #region AtCoderIO _io_; var _backend_ = new StandardIOBackend(); _io_ = new(){ Backend = _backend_ }; Out(Solve()); _backend_.Flush(); string String() => _io_.Next(); int Int() => int.Parse(String()); void Out(object? x, string? sep = null) => _io_.Out(x, sep ?? Environment.NewLine); class AtCoderIO { public required StandardIOBackend Backend { get; init; } Memory<string> _input = Array.Empty<string>(); int _iter = 0; public string Next() { while (_iter >= _input.Length) (_input, _iter) = (Backend.ReadLine().Trim().Split(' '), 0); return _input.Span[_iter++]; } public void Out(object? x, string separator) { if (x == null) return; if (x is System.Collections.IEnumerable a and not string) { var objects = a.Cast<object>(); if (!objects.Any()) return; x = string.Join(separator, objects); } Backend.WriteLine(x); } } class StandardIOBackend { readonly StreamReader _sr = new(Console.OpenStandardInput()); readonly StreamWriter _sw = new(Console.OpenStandardOutput()) { AutoFlush = false }; public string ReadLine() => _sr.ReadLine()!; public void WriteLine(object? value) => _sw.WriteLine(value); public void Flush() => _sw.Flush(); } #endregion static class Extensions { public static T[] Repeat<T>(this int time, Func<T> F) => Enumerable.Range(0, time).Select(_ => F()).ToArray(); }