RubyRuby byteStandard~2h time-box

Command Triplets

You are building a decoder for a legacy industrial robot controller. The controller receives a continuous stream of 3-character instruction codes. Each triplet maps to a named operation. When a HALT code is encountered, execution stops immediately.

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Command Triplets
Step 1
Clone the starter repo
Candidate gets the full project locally — README, source, tests, runner config.
Step 2
Run the visible tests
Public test file is right there. Expectations are explicit from minute one.
Step 3
Make tests pass, push
Candidate works in their own style, pushes reviewable commits for your team.
Starter repo
What candidates clone
2 files
  • command_triplets.rb
  • command_triplets_test.rb

The full README and the hidden test suite are available once you open the byte in your CodeSubmit workspace. Candidates never see the hidden tests.

Skills tested
filteringmapssequences
Difficulty
Standard

Standard engineering judgment. Multiple edge cases worth handling.

Also available in
C++C++C#C#ElixirElixirGoGoJavaScriptJavaScriptPythonPythonRustRustSwiftSwiftTypeScriptTypeScript
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