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Code Off

Code Off is an initiative that challenges developers to take 30 minutes off a Friday afternoon to work on something interesting with their peers. Code Off also aims to help developers expand their Github portfolio and collaborate with the development community. Each Friday afternoon at 15:30 CAT a new problem will be released on Github. Fork the repository, and get started. The automated leaderboard is still in development. We encourage you to collaborate with other developers on Github.

http://www.prolificidea.com/codeoff.html

How to Participate?

Fork the Code Off repo and push your solution to your fork.

Notice

The leaderboard is currently outdated and we're in the process of automating and updating it. Please send through any suggestions to info[at]prolificidea[dot]com

Code Off #10 - Battle Distress Call

Premise

You're competing in a battle on a far away planet and you're in some trouble. You need to send a distress call to your home base for reinforcements, however, enemy agents are listening. Luckily your team have a secret encoding for messages. It's Morse code with further obfuscation.

Challenge

Translate the alphabet based sentence to Morse code, then, obfuscate the Morse code. Below is the international Morse code translations. Separate letters with pipe (|), and separate words with forward slash (/).

International Morse Code

  • A .-
  • B -...
  • C -.-.
  • D -..
  • E .
  • F ..-.
  • G --.
  • H ....
  • I ..
  • J .---
  • K -.-
  • L .-..
  • M --
  • N -.
  • O ---
  • P .--.
  • Q --.-
  • R .-.
  • S ...
  • T -
  • U ..-
  • V ...-
  • W .--
  • X -..-
  • Y -.--
  • Z --..
  • 0 -----
  • 1 .----
  • 2 ..---
  • 3 ...--
  • 4 ....-
  • 5 .....
  • 6 -....
  • 7 --...
  • 8 ---..
  • 9 ----.
  • Fullstop .-.-.-
  • Comma --..--

Obfuscation

For obfuscation, your team decided to replace the number of consecutive dots with a number, and replace the number of consecutive dashes with the letter of the alphabet at that position. E.g. S = ... = 3, Q = --.- = b1a, F = ..-. = 2a1.

Example

Sentence: I AM IN TROUBLE Morse Code: ../.-|--/..|-./-|.-.|---|..-|-...|.-..|. Obfuscated Morse Code: 2/1A|B/2|A1/A|1A1|C|2A|A3|1A2|1

Input

An example input text file:

HELLO
I AM IN TROUBLE

Output

A text file in the following format:

4|1|1A2|1A2|C
2/1Q|B/2|A1/A|1A1|C|2A|A3|1A2|1