Set 42 - Intervals LC #253

Use Practice Loop if you need a reset.

Problems

ProblemDifficultyPatternVideo
LC 253. Meeting Rooms IIMediumIntervalsVideo
Redo 1 backtracking + 1 intervals problem fast
1 mini mock: explain a transformer at high level (5–10 min)

Deliverables

  • Write a 1-line invariant for each problem.
  • Note 1 edge case or pitfall per problem.
  • Record time-to-first-correct solution.

Notes

  • LC 253: min-heap of end times.

Review

  • Time spent + where you got stuck?
  • Biggest mistake or missed edge case?
  • One concrete improvement for next time.

Comments

Share your approach or ask questions

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