Linked Merchant Matching

Problem Overview

You are given a list of merchant records, where each merchant is a dict/object with fields: id, name, email, phone (some variants also include company). You are also given a target merchant ID. Part 1: Return all merchants (excluding the target itself) that share at least one field value (name,…

• 4 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
• The rest of the problem statement — full requirements, constraints, and edge cases
• Approach and trade-offs — what passing candidates did, and the mistakes that sink people