How do I practice coding and algorithm questions?

Use PracHub's coding console to write, test, and debug your solutions in Python or JavaScript. View hints, test against sample inputs, and compare with official solutions.

What difficulty level is this coding question?

This is a medium difficulty Coding & Algorithms question, commonly asked during Technical Screen rounds at OpenAI.

What role is this question designed for?

This question is commonly asked for Software Engineer candidates at OpenAI during technical interviews.

Implement A Contiguous Memory Allocator With Free-Block Coalescing

Quick Overview

Review a contiguous memory allocator coding prompt with malloc, free, first-fit allocation, block coalescing, and a best-fit follow-up. The interview topic emphasizes interval management, allocated-block maps, fragmentation, secondary indexes, and complexity trade-offs.

Quick Overview

medium
OpenAI
Coding & Algorithms
Software Engineer

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