Everything between
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solution.py ×

01  def find_duplicates(numbers):
02      seen = set()
03      duplicates = set()
04
05      for number in numbers:
06          if number in seen:
07              duplicates.add(number)
08          seen.add(number)
09
10      return list(duplicates)

Candidate · Maya

Interviewer · Alex

TERMINAL OUTPUT

~/workspace $ pytest -q

.....
5 passed in 0.38s

Watching for changes…

WHAT'S INSIDE 02 / CAPABILITIES

Real runtimes

Run actual code in isolated environments with files, dependencies, tests, and terminal access.

JS · PY · RB · GO · JAVA · C++

Live collaboration

See cursors, selections, edits, and presence without screen sharing or surrendering control.

MULTIPLAYER BY DEFAULT

Interview structure

Start from a repeatable prompt and leave focused feedback while context is still fresh.

CONSISTENT, NOT RIGID

Zero setup

Send one link. Candidates join from their browser and begin working in a ready environment.

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MAKE THE INTERVIEW FEEL LIKE THE JOB

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