Noob cipher

[admin]

A simple cipher that makes messages quite unreadable is the substitution cipher. The substitution cipher replace one alphabet letter with another alphabet letter. The goal of this puzzle is to decrypt a message encoded with a substitution cipher.

Read

[vladut]

I think the overall leaderboard for the contest does not work.

[admin]

Oh yes, I planned to have it computed every 24 hours to maintain the SQL low, I added a message to inform about this.
Sorry for the confusion. May be I'm going to make it computed dynamically and see if the server can take the load if people want it refreshed all the time.

[al13n]

C# testing behaves strangely. This code

Code: Select all

using System.IO;
public class noob_cipher
{
   public static void Main(string[] args)
   {
       new FileStream(args[1],FileMode.Open);
   }
}

gives the following verification report

Code: Select all

ERROR(exception_general): Exception or assert

(/tmp/cbot_-1_KQWAX_.cs.exe:17804): GLib-WARNING **: getpwuid_r(): failed due to: Permission denied.

Unhandled Exception: System.UnauthorizedAccessException: Access to the path "/dev/shm/noob_cipher/tests/verify.in" is denied.
  at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) [0x00000]
  at System.IO.FileStream..ctor (System.String path, FileMode mode) [0x00000]
  at (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode)
  at noob_cipher.Main (System.String[] args) [0x00000]


Looks like the solution is run without enough permissions. It's the first task I try to solve with C#, so I don't know whether it's a common problem or just this task.

[admin]

The file is read-only, that's probably why you get this message.
Have you tried to use:
FileAccess.Read

[al13n]

Thanks, it works. I didn't realise it opens for read/write by default.

[Neha Choudhary]

The code i am using is working well on my system but on your site its verification gets failed because the input to the substitution table is given in the form of integer.
what is wrong?

[admin]

Nena, make sure you read the substitution table correctly. I took a look at your code and it seems you only look at the first character of the substitution table.

[rocker]

My php code is working fine and on verify its showing the same output as declared. But still its saying -

ERROR(incorrect): Incorrect result
Your submission failed to give the exact answer on the verification test. Please verify your code.
For reference, you program generated these results:
WELCOME TO CODER CHARTS

see the output is same.

[David Berthelot]

May be check for extra spaces at the end of the line ?
Or may be you replaced a newline (\n) with an empty char ?