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OpenAI Phone Screen Questions & Results (New Grad)

Round 1

Questions: The question was similar to Leetcode's Time Based Key Value Store. The main idea was to process a series of post/delete statements (unsorted) with associated timestamps and compute a balance at any arbitrary timestamp.

Candidate's Approach

The candidate used a priority queue to sort the statements and a tree map to fetch the balance at an arbitrary timestamp.

Interviewer's Feedback

No feedback provided.