fork download 
  1. using System;
  2. using System.Linq;
  3. using System.Text.RegularExpressions;
  4.  
  5. public class Test
  6. {
  7. 	public static void Main()
  8. 	{
  9. 		var str = "AXBY@@CZ@A";
  10. 		var matches = Regex.Matches(str, "@@|[ABC]").Cast<Match>();
  11. 		var replaced = string.Join("?", matches.Select(x => x.Value));
  12.         Console.WriteLine(replaced);
  13. 	}
  14. }
Success #stdin #stdout 0.03s 30712KB
comments (?)
stdin 
Standard input is empty
stdout 
A?B?@@?C?A
https://ideone.com/ZoVgMk
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!