結果
問題 | No.806 木を道に |
ユーザー | sekiya9311 |
提出日時 | 2019-10-20 23:50:37 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 285 ms / 2,000 ms |
コード長 | 6,707 bytes |
コンパイル時間 | 2,723 ms |
コンパイル使用メモリ | 111,568 KB |
実行使用メモリ | 39,700 KB |
最終ジャッジ日時 | 2023-09-15 14:50:48 |
合計ジャッジ時間 | 8,441 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge12 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 73 ms
22,196 KB |
testcase_01 | AC | 73 ms
24,156 KB |
testcase_02 | AC | 74 ms
22,304 KB |
testcase_03 | AC | 73 ms
22,232 KB |
testcase_04 | AC | 72 ms
22,368 KB |
testcase_05 | AC | 74 ms
24,208 KB |
testcase_06 | AC | 74 ms
22,212 KB |
testcase_07 | AC | 73 ms
22,304 KB |
testcase_08 | AC | 73 ms
24,228 KB |
testcase_09 | AC | 73 ms
22,176 KB |
testcase_10 | AC | 116 ms
28,512 KB |
testcase_11 | AC | 112 ms
30,084 KB |
testcase_12 | AC | 254 ms
37,844 KB |
testcase_13 | AC | 203 ms
35,116 KB |
testcase_14 | AC | 244 ms
35,384 KB |
testcase_15 | AC | 257 ms
35,764 KB |
testcase_16 | AC | 135 ms
31,464 KB |
testcase_17 | AC | 230 ms
36,564 KB |
testcase_18 | AC | 90 ms
24,252 KB |
testcase_19 | AC | 119 ms
30,836 KB |
testcase_20 | AC | 224 ms
36,604 KB |
testcase_21 | AC | 157 ms
30,708 KB |
testcase_22 | AC | 285 ms
37,560 KB |
testcase_23 | AC | 284 ms
37,656 KB |
testcase_24 | AC | 170 ms
31,760 KB |
testcase_25 | AC | 224 ms
35,148 KB |
testcase_26 | AC | 124 ms
31,512 KB |
testcase_27 | AC | 247 ms
39,700 KB |
testcase_28 | AC | 78 ms
22,308 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Numerics; using System.Text; namespace ProgrammingContestTemplateByDotNetCore { #region "Input and Output Classes" class Scanner : IDisposable { private readonly Queue<string> _buffer; private readonly char[] _sep; private readonly TextReader _reader; public Scanner(TextReader reader = null, char[] sep = null) { _buffer = new Queue<string>(); _sep = sep ?? new[] { ' ' }; _reader = reader ?? Console.In; } public Scanner(string path, char[] sep = null) : this(new StreamReader(path), sep) { } private void CheckBuffer() { if (_buffer.Any() || _reader.Peek() == -1) return; string str = string.Empty; for (; string.IsNullOrWhiteSpace(str); str = _reader.ReadLine()) { } var values = str.Split(_sep).Where(s => !string.IsNullOrWhiteSpace(s)); foreach (var item in values) { _buffer.Enqueue(item); } } public string Next() { CheckBuffer(); return _buffer.Dequeue(); } public string[] GetStringArray(int count) => Enumerable.Range(0, count) .Select(e => Next()) .ToArray(); public int NextInt() => int.Parse(Next()); public int[] GetIntArray(int count) => Enumerable.Range(0, count) .Select(e => NextInt()) .ToArray(); public long NextLong() => long.Parse(Next()); public long[] GetLongArray(int count) => Enumerable.Range(0, count) .Select(e => NextLong()) .ToArray(); public double NextDouble() => double.Parse(Next()); public double[] GetDoubleArray(int count) => Enumerable.Range(0, count) .Select(e => NextDouble()) .ToArray(); public decimal NextDecimal() => decimal.Parse(Next()); public decimal[] GetDecimalArray(int count) => Enumerable.Range(0, count) .Select(e => NextDecimal()) .ToArray(); public BigInteger NextBigInt() => BigInteger.Parse(Next()); public BigInteger[] GetBigIntArray(int count) => Enumerable.Range(0, count) .Select(e => NextBigInt()) .ToArray(); public bool IsEnd { get { CheckBuffer(); return !_buffer.Any(); } } public void Dispose() { if (!_reader.Equals(Console.In)) _reader.Dispose(); } } class Writer : IDisposable { private readonly TextWriter _writer; private readonly StringBuilder _cache; private readonly bool _isReactive; public Writer(TextWriter writer = null, bool isReactive = false) { _writer = writer ?? Console.Out; _isReactive = isReactive; if (!_isReactive) _cache = new StringBuilder(); } public Writer(string path) : this(new StreamWriter(path)) { } public Writer(bool isReactive) : this(null, isReactive) { } public void Write(object value) { if (_isReactive) { _writer.Write(value); _writer.Flush(); } else { _cache.Append(value); } } public void WriteFormat(string format, params object[] values) { var value = string.Format(format, values); Write(value); } public void WriteLine(object value = null) { Write($"{value}{Environment.NewLine}"); } public void WriteLine(string format, params object[] values) { WriteFormat($"{format}{Environment.NewLine}", values); } public void Dispose() { if (!_isReactive) { _writer.Write(_cache); _writer.Flush(); } if (!_writer.Equals(Console.Out)) { _writer.Dispose(); } } } public static class Extensions { public static void Set<TKey, TValue>( this IDictionary<TKey, TValue> source, TKey key, TValue value) { if (source.ContainsKey(key)) source[key] = value; else source.Add(key, value); } } #endregion class MainClass : IDisposable { #region "Template" /// <summary> 入力を受け取る </summary> private readonly Scanner sc; /// <summary> 出力を行う </summary> private readonly Writer wr; private const string _inputFile = "input.txt"; private const string _outFile = "output.txt"; static void Main(string[] args) { using (new MainClass()) { } } public MainClass() { wr = new Writer(_isReactive); // TODO: ファイルに出力したい場合はこっち → wr = new Writer(_outFile); #if DEBUG // 手元では、ファイルから入力を受け取る sc = new Scanner(_inputFile); #else // 提出時、標準入力から受け取る sc = new Scanner(); #endif Solve(); } public void Dispose() { sc?.Dispose(); wr?.Dispose(); } #endregion int N; List<int>[] G; void Solve() { N = sc.NextInt(); G = Enumerable.Range(0, N) .Select(_ => new List<int>()) .ToArray(); for (int i = 0; i < N - 1; i++) { var a = sc.NextInt() - 1; var b = sc.NextInt() - 1; G[a].Add(b); G[b].Add(a); } var cnt = G.Select(e => e.Count) .OrderByDescending(e => e) .ToArray(); var ans = cnt .Select(e => e <= 2 ? 0 : e - 2) .Sum(); wr.WriteLine(ans); } /// <summary> /// TODO: リアクティブ問題か否かを指定してね♪ /// </summary> private const bool _isReactive = false; } }