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  1. using System;
  2. using System.Linq;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		var data = new[] { 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 2, 2, 2, 2, 2 };
  9. 		Func<int, bool> acceptPredicate = i => i != 0;
  10. 		Func<int, bool> rejectPredicate = i => i == 0;
  11.  
  12. 		var acceptMode = false;
  13. 		var groupCount = 0;
  14. 		var result = data.GroupBy(i => {
  15. 		    if (acceptMode && rejectPredicate(i)) {
  16. 				acceptMode = false;
  17. 				++groupCount;
  18. 			}
  19. 			else if (!acceptMode && acceptPredicate(i)) {
  20. 				acceptMode = true;
  21. 				++groupCount;
  22. 			}
  23. 			return groupCount;
  24. 		})
  25. 		.Where(g => !rejectPredicate(g.First()))
  26. 		.FirstOrDefault(g => g.Count() >= 5);
  27.  
  28. 		if (result != null) {
  29. 			Console.WriteLine("Matching sequence found: ");
  30. 			Console.WriteLine(string.Join(", ", result.Select(o => o.ToString()).ToArray()));
  31. 		}
  32.  
  33. 	}
  34. }
Success #stdin #stdout 0.05s 37248KB
comments (?)
stdin 
Standard input is empty
stdout 
Matching sequence found: 
2, 2, 2, 2, 2
https://ideone.com/X66uL
language:
C# (gmcs 5.20.1)
created:
13 years ago
visibility:
public

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