Loan Aggregation & Transaction Matching (Parent-Company Resolution)

Asked at Affirm · Coding Questions · Difficulty: Medium · Last asked Mar 12, 2026

A multi-part live-coding problem: resolve each company to its topmost parent in a parent/child hierarchy, aggregate loans onto that top-level company, then match incoming transactions to the right loan. The challenge is reading comprehension and clean map manipulation over long boilerplate, not algorithms.

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