How should I practice Text Editor, Part 1: Basic Text Buffer?

Start by reading the full statement, solve the visible examples, then compare the pattern against related OpenAI phone screen problems in FastPrep.

Is Text Editor, Part 1: Basic Text Buffer associated with OpenAI?

FastPrep tags this as a OpenAI phone screen coding practice problem when the problem catalog has that company and stage context.

Problem · Design

● Medium

OpenAIFULLTIMEPHONE SCREEN

Implement the text buffer for a text editor. The buffer begins empty and supports insertion, deletion, and reading the current text.

Each operation is a string array:

["INSERT", position, text]: insert text immediately before the character at the zero-based position. A position equal to the current text length appends the text.
["DELETE", start, end]: delete the characters in the half-open range [start, end).
["GET"]: append the complete current text to the output.

processTextBuffer(operations: String[][]) → String[]

operations = [["INSERT", "0", "hello"], ["INSERT", "5", "!"], ["GET"], ["DELETE", "1", "4"], ["GET"]]return = ["hello!", "ho!"]

The first query reads hello!. Deleting indices 1 through 3 removes ell, leaving ho!.