JavaJava byteAdvanced~4h time-box

Beacon Board

A maintenance beacon board spells out numbers using a 3 x 4 grid of pipes, underscores, and spaces. Decode the digits, preserve any unreadable glyphs as ?, and join multiple rows with commas.

Beacon Board
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
1 files
  • build.gradle

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
exception handlinglistsloopsparsing
Difficulty
Advanced

Non-trivial design choices. Tests multiple skills under time pressure.