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  1. //Rextester.Program.Main is the entry point for your code. Don't change it.
  2. //Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)
  3.  
  4. using System;
  5. using System.Collections.Generic;
  6. using System.Linq;
  7. using System.Text.RegularExpressions;
  8. using System.Text;
  9.  
  10. namespace Rextester
  11. {
  12.     public class Program
  13.     {
  14.         public static void Main(string[] args)
  15.         {
  16.             //Your code goes here
  17.             DateTime now = DateTime.Now;
  18.             string str1 = now.ToString("yyyyMMdd");
  19.             now = DateTime.Now;
  20.             string s1 = now.ToString("yyyy");
  21.             now = DateTime.Now;
  22.             string s2 = now.ToString("MMdd");
  23.             string pass = "52422";
  24.             string lastlogin = "";
  25.             byte[] bytes1 = Encoding.ASCII.GetBytes(s1);
  26.             byte[] bytes2 = Encoding.ASCII.GetBytes(s2);
  27.             string str2 = ((int) bytes1[0] - 48 ^ (int) bytes2[0] - 48).ToString() + (object) ((int) bytes1[1] - 48 ^ (int) bytes2[1] - 48) + (object) ((int) bytes1[2] - 48 ^ (int) bytes2[2] - 48) + (object) ((int) bytes1[3] - 48 ^ (int) bytes2[3] - 48);
  28.             string str3 = ((int) bytes1[3] - 48 | (int) bytes2[3] - 48).ToString() + (object) ((int) bytes1[2] - 48 | (int) bytes2[2] - 48) + (object) ((int) bytes1[1] - 48 | (int) bytes2[1] - 48) + (object) ((int) bytes1[0] - 48 | (int) bytes2[0] - 48);
  29.  
  30.             if (pass == str2)
  31.             {
  32.               Console.WriteLine("Chế độ 1");
  33.             }
  34.             else if ((lastlogin == "" || lastlogin != str1) && pass == str3)
  35.             {
  36.               Console.WriteLine("Chế độ 2");
  37.             }   else     {
  38.                 Console.WriteLine("Mã bảo vệ không đúng hoặc tính năng bị vô hiệu");
  39.             }
  40.             Console.WriteLine(str1);
  41.             Console.WriteLine(str2);
  42.             Console.WriteLine(str3);
  43.         }
  44.     }
  45. }
Success #stdin #stdout 0.05s 28252KB
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stdin
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Standard input is empty
stdout
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Mã bảo vệ không đúng hoặc tính năng bị vô hiệu
20241114
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https://ideone.com/3K18io
language:
C# (gmcs 5.20.1)
created:
14 hours ago
visibility:
public

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