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  1. using System;
  2. using System.Text;
  3. using System.Collections.Generic;
  4. using System.Text.RegularExpressions;
  5.  
  6. public class Test
  7. {
  8. 	private static string[] productCodes = new[] { 
  9. 		"MD0133776311I",
  10. 		"M10133776311I",
  11. 		"M20133776311I"
  12. 	};
  13.  
  14. 	private static Dictionary<char, char> replacementMap = new Dictionary<char, char> {
  15. 		{ '1', 'I' },
  16. 		{ '2', 'S' },
  17. 	};
  18.  
  19. 	private static Regex startsWithTwoLettersRegex = new Regex("^([A-Z]{2})");
  20.  
  21. 	public static void Main()
  22. 	{
  23. 		foreach (var code in productCodes)
  24. 		{
  25. 			Console.Write("{0} -> ", code);
  26. 			if (!startsWithTwoLettersRegex.Match(code).Success)
  27. 			{
  28. 				Console.WriteLine(FixProductCode(code));
  29. 			}
  30. 			else
  31. 			{
  32. 				Console.WriteLine("OK!");	
  33. 			}
  34. 		}
  35. 	}
  36.  
  37. 	static string FixProductCode(string code)
  38. 	{
  39. 		StringBuilder sb = new StringBuilder(code);
  40. 		sb[1] = replacementMap[code[1]];
  41. 		return sb.ToString();
  42. 	}
  43. }
Success #stdin #stdout 0.08s 34888KB
comments ()
stdin 
Standard input is empty
stdout 
MD0133776311I -> OK!
M10133776311I -> MI0133776311I
M20133776311I -> MS0133776311I
https://ideone.com/89oSWW
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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