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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. namespace RandomTest
  5. {
  6.     static class RandomInts
  7.     {
  8.         private static Random random = new Random();
  9.  
  10.         public static HashSet<int> Shuffle(int howMany, int from, int to)
  11.         {
  12.             CheckRange(howMany, from, to);
  13.  
  14.             var result = new HashSet<int>();
  15.             while (result.Count < howMany)
  16.             {
  17.                 result.Add(random.Next(from, to + 1));
  18.             }
  19.             return result;
  20.         }
  21.  
  22.         private static void CheckRange(int howMany, int from, int to)
  23.         {
  24.             int count = 0;
  25.             for (int i = from; i < to + 1; i++, count++) ;
  26.  
  27.             if (howMany > count)
  28.                 throw new Exception("Inifinite looped range exception.");
  29.         }
  30.     }
  31.  
  32.     class Program
  33.     {
  34.         static void Main(string[] args)
  35.         {
  36.             foreach (int i in RandomInts.Shuffle(howMany: 10, from: 1, to: 100))
  37.             {
  38.                 Console.WriteLine(i);
  39.             }
  40.         }
  41.     }
  42. }
Success #stdin #stdout 0.03s 16704KB
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stdin
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Standard input is empty
stdout
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93
34
37
27
52
92
20
22
46
69
https://ideone.com/8vbZBM
language:
C# (gmcs 5.20.1)
created:
5 years ago
visibility:
public

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