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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Test
  6. {
  7. 	public static void Main()
  8. 	{
  9. 		var A = new[] {"1","2","3"};
  10.  
  11. 		var B = new[] {
  12. 			"1,2,3,4,5,6,7",
  13. 			"1,2,6,7",
  14. 			"1",
  15. 			"4,5,6",
  16. 			"6,7"
  17. 		};
  18.  
  19. 	    var set = new HashSet<string>(A);
  20. 	    var matches = B.Where(s => s.Split(',').Any(n => set.Contains(n))).ToList();
  21. 		foreach(var match in matches) Console.WriteLine(match);
  22.  
  23. 	}
  24. }
Success #stdin #stdout 0.03s 34856KB
comments ()
stdin
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Standard input is empty
stdout
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1,2,3,4,5,6,7
1,2,6,7
1
https://ideone.com/8UasLj
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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