Software Engineer signal: dynamic programming + knapsack in a checkout reliability context. This is a ProdMatch-owned software engineer drill, framed as a March 2026 Chargebee Payments Core simulation, not a copied platform question.
Company context
Chargebee · Payments Core
Freshness
March 2026
Product surface
checkout reliability
ProdMatch interview simulation based on product-team patterns; not a claim of a real company question.
Your Payments Core roadmap has candidate improvements for checkout reliability. Each improvement has cost, lift and risk. Maximize lift under budget while keeping total risk below a threshold.
Input
Output
Constraints
Concepts
items [[2,5,1],[4,9,4]], budget=4, risk=4 -> 9
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