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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Security.Cryptography;
  5. using System.Text;
  6.  
  7. namespace Util
  8. {
  9.     public class RandomWordMatch
  10.     {
  11.         private readonly string baseChars = "1234567890";
  12.         private readonly string defaultMatchWord = "114514";
  13.  
  14.  
  15.  
  16.         private bool _ProgressDisplay = true;
  17.  
  18.         public bool ProgressDisplay { get { return _ProgressDisplay; } set { _ProgressDisplay = value; } }
  19.  
  20.         public RandomWordMatch()
  21.         {
  22.         }
  23.  
  24.         public RandomWordMatch(string baseChars, string defaultMatchWord = "114514")
  25.         {
  26.             if (string.IsNullOrWhiteSpace(baseChars))
  27.                 throw new ArgumentNullException("baseChars");
  28.             else if (string.IsNullOrWhiteSpace(defaultMatchWord))
  29.                 throw new ArgumentNullException("defaultMatchWord");
  30.  
  31.             this.baseChars = baseChars;
  32.             this.defaultMatchWord = defaultMatchWord;
  33.         }
  34.  
  35.  
  36.         public void Start(string matchWord = null, int limit = int.MaxValue)
  37.         {
  38.             if (string.IsNullOrWhiteSpace(matchWord))
  39.                 matchWord = defaultMatchWord;
  40.  
  41.             var wordQueue = new Queue<char>();
  42.  
  43.             foreach (var c in GetRandomString(matchWord.Count()))
  44.                 wordQueue.Enqueue(c);
  45.  
  46.             int count = 0;
  47.             while (count < limit)
  48.             {
  49.                 if (wordQueue.SequenceEqual(matchWord))
  50.                 {
  51.                     foreach (var c in wordQueue)
  52.                         Console.Write(c);
  53.  
  54.                     Console.WriteLine(
  55.                         "\n\n    ＨＩＴ！！！ \n    {0}回目で「{1}」！！！",
  56.                         (count + matchWord.Count()),
  57.                         matchWord);
  58.  
  59.                     break;
  60.                 }
  61.  
  62.                 count++;
  63.  
  64.                 if (ProgressDisplay)
  65.                 {
  66.                     Console.Write(wordQueue.Dequeue());
  67.                 }
  68.                 else
  69.                 {
  70.                     wordQueue.Dequeue();
  71.                 }
  72.  
  73.                 wordQueue.Enqueue(GetRandomString(1)[0]);
  74.             }
  75.         }
  76.  
  77.         private string GetRandomString(int length)
  78.         {
  79.             var sb = new StringBuilder(length);
  80.             for (int i = 0; i < length; i++)
  81.                 sb.Append(baseChars[GetRandomNumber()]);
  82.             return sb.ToString();
  83.         }
  84.  
  85.         private int GetRandomNumber()
  86.         {
  87.             var bs = new byte[4];
  88.             var rng = new RNGCryptoServiceProvider();
  89.             rng.GetBytes(bs);
  90.             var num = BitConverter.ToInt32(bs, 0);
  91.             return Math.Abs(num % baseChars.Length);
  92.         }
  93.     }
  94. }
  95.  
  96. public class Test
  97. {
  98. 	public static void Main()
  99. 	{
  100. //            var r = new Util.RandomWordMatch();
  101.             var r = new Util.RandomWordMatch("145");
  102.             r.Start();
  103. 	}
  104. }
Success #stdin #stdout 0.06s 24440KB
comments (?)
stdin 
Standard input is empty
stdout 
5541451111154151415551555154145155154441115554455454541541454545511514554515445541415144141455444541415454545555511555415554554541111541544551451555411544441414545151411111111555545441115141144545541555555455144441511111441511454415114114114555141141451415544411115415155444545114111514111141544144141151154514451414115154441551144514144551544414541115544114145551441114154144555411115151451444445541154451115444144411411454444141515551151411545411554544551511111444414415445511151415454544454555154151151415144514544545414111455415551414445554544444544411441154451511144455114514

    ＨＩＴ！！！ 
    580回目で「114514」！！！
https://ideone.com/f0GVgV
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
secret

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