Scheduling / Game List Adjacency (No Consecutive Identical)

CodingRobloxLast reported January 2026Low Frequency
Reported
2× across candidate reports
First seen
April 2025
Last reported
January 2026
Reported outcome
unknown

Problem Overview

Given a list of games (or tasks/events), rearrange the list such that no two identical items appear in adjacent positions. The solution should: (1) determine whether such a valid arrangement is possible (return True/False), and (2) if possible, generate and return…

  • 2 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
  • The rest of the problem statement — full requirements, constraints, and edge cases
  • Approach and trade-offs — what passing candidates did, and the mistakes that sink people
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Verified Source
Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.
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Technical claims, formulas, and scale numbers are reviewed against primary sources.
Interviewer Follow-ups
The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.
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