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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Test
  6. {
  7.     static IEnumerable<string> Filter(IEnumerable<string> files, string query) {
  8.         var lowerQuery = query.ToLower();
  9.         var hasNew = lowerQuery.StartsWith("new");
  10.         return files
  11.             .Where(f =>
  12.                 f.ToLower().Contains(lowerQuery)
  13.             &&  (hasNew || !f.ToLower().StartsWith("new"))
  14.             );
  15. 	}
  16. 	public static void Main()
  17. 	{
  18. 		var data = new[] {"NewFile1", "NewFile2", "File1", "File2", "Newfoundland"};
  19. 		foreach (var s in Filter(data, "file")) {
  20. 			Console.Write("{0} ", s);
  21. 		}
  22. 		Console.WriteLine();
  23. 		foreach (var s in Filter(data, "newf")) {
  24. 			Console.Write("{0} ", s);
  25. 		}
  26. 		Console.WriteLine();
  27. 	}
  28. }
Success #stdin #stdout 0.01s 131648KB
comments (?)
stdin 
Standard input is empty
stdout 
File1 File2 
NewFile1 NewFile2 Newfoundland
https://ideone.com/eWHSDn
language:
C# (gmcs 5.20.1)
created:
7 years ago
visibility:
public

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