Text Editor (Buffer, Undo/Redo, Autocomplete, Collaboration)

Problem Overview

Design and implement a text editor data structure that supports four progressively complex parts: Part 1 — Basic Text Buffer: Implement a data structure with: - insert(position: int, text: str) — insert text at the given character position - delete(start: int, end: int) — delete characters from start to end…

• 6 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