結果
問題 | No.921 ずんだアロー |
ユーザー | 紙ぺーぱー |
提出日時 | 2019-11-08 21:26:09 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 62 ms / 2,000 ms |
コード長 | 3,938 bytes |
コンパイル時間 | 1,139 ms |
コンパイル使用メモリ | 111,488 KB |
実行使用メモリ | 23,496 KB |
最終ジャッジ日時 | 2024-09-15 01:11:25 |
合計ジャッジ時間 | 3,084 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 25 ms
19,456 KB |
testcase_01 | AC | 25 ms
19,712 KB |
testcase_02 | AC | 26 ms
19,200 KB |
testcase_03 | AC | 25 ms
19,328 KB |
testcase_04 | AC | 26 ms
19,328 KB |
testcase_05 | AC | 25 ms
19,456 KB |
testcase_06 | AC | 25 ms
19,456 KB |
testcase_07 | AC | 26 ms
19,584 KB |
testcase_08 | AC | 26 ms
19,328 KB |
testcase_09 | AC | 25 ms
19,200 KB |
testcase_10 | AC | 58 ms
23,356 KB |
testcase_11 | AC | 58 ms
23,496 KB |
testcase_12 | AC | 34 ms
23,296 KB |
testcase_13 | AC | 51 ms
23,228 KB |
testcase_14 | AC | 55 ms
23,360 KB |
testcase_15 | AC | 45 ms
23,364 KB |
testcase_16 | AC | 29 ms
20,480 KB |
testcase_17 | AC | 55 ms
23,232 KB |
testcase_18 | AC | 61 ms
23,488 KB |
testcase_19 | AC | 60 ms
23,364 KB |
testcase_20 | AC | 62 ms
23,244 KB |
testcase_21 | AC | 61 ms
23,380 KB |
testcase_22 | AC | 62 ms
23,360 KB |
testcase_23 | AC | 60 ms
23,360 KB |
testcase_24 | AC | 60 ms
23,232 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
//author: camypaper using System; using System.Linq; using System.Collections.Generic; using System.Text.RegularExpressions; using Debug = System.Diagnostics.Debug; using SB = System.Text.StringBuilder; using System.Numerics; using Point = System.Numerics.Complex; using static System.Math; using Number = System.Int32; using System.Runtime.CompilerServices; namespace Program { public class Solver { Random rnd = new Random(0); public void Solve() { var n = ri; var a = Enumerate(n, x => ri); var dp = new int[2]; dp[1] = -100000000; var prev = -1; foreach (var x in a) { var next = new int[2]; next[0] = Max(dp[0], dp[1]); next[1] = dp[0] + 1; if (x == prev) next[1] = Max(next[1], dp[1] + 1); dp = next; prev = x; } Console.WriteLine(dp.Max()); ; } const long INF = 1L << 60; int ri => sc.Integer(); long rl => sc.Long(); double rd => sc.Double(); string rs => sc.Scan(); public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput()); static IEnumerable<int> Rep(int n) => Enumerable.Range(0, n); static IEnumerable<int> RRep(int n) => Enumerable.Range(0, n).Reverse(); static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < a.Length; ++i) a[i] = f(i); return a; } static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; } } } #region main static class Ex { static public string AsString(this IEnumerable<char> ie) { return new string(ie.ToArray()); } static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); } static public void Main() { Console.SetOut(new Program.IO.Printer(Console.OpenStandardOutput()) { AutoFlush = false }); var solver = new Program.Solver(); solver.Solve(); Console.Out.Flush(); } } #endregion #region Ex namespace Program.IO { using System.IO; using System.Text; using System.Globalization; public class Printer : StreamWriter { public override IFormatProvider FormatProvider => CultureInfo.InvariantCulture; public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { } } public class StreamScanner { public StreamScanner(Stream stream) { str = stream; } public readonly Stream str; private readonly byte[] buf = new byte[1024]; private int len, ptr; public bool isEof = false; private byte read() { if (isEof) return 0; if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } } return buf[ptr++]; } public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; } public string Scan() { var sb = new StringBuilder(); for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b); return sb.ToString(); } public string ScanLine() { var sb = new StringBuilder(); for (var b = Char(); b != '\n' && b != 0; b = (char)read()) if (b != '\r') sb.Append(b); return sb.ToString(); } public long Long() { return isEof ? long.MinValue : long.Parse(Scan()); } public int Integer() { return isEof ? int.MinValue : int.Parse(Scan()); } public double Double() { return isEof ? double.NaN : double.Parse(Scan(), CultureInfo.InvariantCulture); } } } #endregion