Remove duplicates in-place from unsorted array

Company: Microsoft

Role: Software Engineer

Category: Coding & Algorithms

Difficulty: medium

Interview Round: Onsite

Quick Answer: This question evaluates understanding of in-place array manipulation, duplicate removal, and algorithmic analysis under strict extra-space constraints. It is commonly asked in Coding & Algorithms interviews to assess reasoning about time-space trade-offs and algorithmic complexity, emphasizing practical application and implementation-level skills rather than purely conceptual knowledge.