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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. public class Test
  5. {
  6. 	static Random random = new Random();
  7.  
  8. 	public static List<int> GenerateRandom(int count)
  9. 	{
  10. 		// generate count random values.
  11. 		HashSet<int> candidates = new HashSet<int>();
  12. 		while (candidates.Count < count)
  13. 		{
  14. 			// May strike a duplicate.
  15. 			candidates.Add(random.Next());
  16. 		}
  17.  
  18. 		// load them in to a list.
  19. 		List<int> result = new List<int>();
  20. 		result.AddRange(candidates);
  21.  
  22. 		// shuffle the results:
  23. 		int i = result.Count;  
  24.         while (i > 1)
  25.         {  
  26.             i--;  
  27.             int k = random.Next(i + 1);  
  28.             int value = result[k];  
  29.             result[k] = result[i];  
  30.             result[i] = value;  
  31.         }  
  32. 		return result;
  33. 	}
  34. 	public static void Main()
  35. 	{
  36. 		List<int> vals = GenerateRandom(10);
  37. 		Console.WriteLine("Result: " + vals.Count);
  38. 		vals.ForEach(Console.WriteLine);
  39. 	}
  40. }
Success #stdin #stdout 0.06s 34080KB
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stdin
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Standard input is empty
stdout
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Result: 10
2070122011
1419642082
2106305672
102665921
1415739618
1013160141
1021833481
1708489576
820147084
1190646335
https://ideone.com/p9HmjS
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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