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Spreadsheet dependency engine: formula eval and circular references.

Cells hold values or formulas over other cells, and an edit must recompute dependents without looping forever. Dependency graph plus cycle detection.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

Cells hold values or formulas over other cells, and an edit must recompute dependents without looping forever. Dependency graph plus cycle detection.

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No lesson covers this question directly yet. These teach the surrounding topic from the beginning.

Applied AI Engineering·The interviewPremium12mTurning this course into a study planA concrete four-week plan mapping the seven modules onto the question bank, plus what to do differently if your interview is next week rather than next month.

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Next in this trackBuild a small tool to a loosely defined, shifting spec: clarify, structure for change, adapt mid-session.Next in this trackFenwick tree (Binary Indexed Tree): point updates and prefix sums in O(log n).Next in this trackSegment tree: range queries and point updates for sum, min, or max in O(log n).

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