Matrix · In-place State Encoding — Bit Pair
LC-289. Game of Life
LC-289. Game of Life on FaangDeck — In-place State Encoding — Bit Pair pattern lesson. Signals, template, trap, Python solution, complexity, and interview…
What's inside this lesson
- Hook & First Instinct — frame the problem like an interviewer expects
- Brute force → Insight — what's redundant, what to exploit
- Recognition signals — three cues in the problem that point to this pattern
- Canonical template + adapted solution — clean Python, line-commented
- The trap — the near-correct bug everyone hits first time
- Trace + complexity — step-by-step walkthrough + time/space
- Interview Playbook — what to actually say in the room
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