Contact Matching by Email Domain

Problem Overview

A multi-part coding problem involving contact matching and consolidation using email domains. Input must be read from stdin. Part 1: Given a list of contacts (each with a name and one or more email addresses), match and consolidate contacts that share the same email domain. Contacts sharing a domain should…

• 2 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