Question 1

How many LeetCode questions does OpenAI ask in interviews?

Accepted Answer

OpenAI has 17 known LeetCode interview questions. The difficulty breakdown is 1 Easy, 14 Medium, and 2 Hard problems.

Question 2

What are the most common topics in OpenAI coding interviews?

Accepted Answer

The most frequently asked topics at OpenAI are Array (11 questions), Design (10 questions), Hash Table (7 questions), String (7 questions), Matrix (4 questions). Focus on these topics to maximize your preparation.

Question 3

How should I prepare for a OpenAI coding interview?

Accepted Answer

Start with the most frequently asked OpenAI problems on CodeJeet, sorted by frequency. Focus on Medium difficulty first since OpenAI asks 14 Medium problems. Practice the top topics: Array, Design, Hash Table.

Title	Difficulty	Acceptance	Frequency	Topics
Design SQL	Medium	64.6%	100.0%	ArrayHash TableString+1
Design Memory Allocator	Medium	49.7%	90.6%	ArrayHash TableDesign+1
Encode and Decode Strings	Medium	51.2%	89.1%	ArrayStringDesign
Flatten Nested List Iterator	Medium	65.6%	85.6%	StackTreeDepth-First Search+3
IP to CIDR	Medium	53.6%	79.0%	StringBit Manipulation
Time Based Key-Value Store	Medium	49.7%	79.0%	Hash TableStringBinary Search+1
Rotting Oranges	Medium	58.2%	76.2%	ArrayBreadth-First SearchMatrix
Design Excel Sum Formula	Hard	39.9%	69.2%	ArrayHash TableString+4
Simplify Path	Medium	50.0%	64.6%	StringStack
Design Authentication Manager	Medium	58.4%	50.2%	Hash TableLinked ListDesign+1
Design Hit Counter	Medium	69.6%	50.2%	ArrayBinary SearchDesign+2
Web Crawler Multithreaded	Medium	51.0%	50.2%	Depth-First SearchBreadth-First SearchConcurrency
Largest Local Values in a Matrix	Easy	87.7%	50.2%	ArrayMatrix
Asteroid Collision	Medium	47.2%	50.2%	ArrayStackSimulation
Design Spreadsheet	Medium	74.3%	50.2%	ArrayHash TableString+2
Trapping Rain Water	Hard	66.8%	50.2%	ArrayTwo PointersDynamic Programming+2
Snapshot Array	Medium	36.7%	50.2%	ArrayHash TableBinary Search+1

OpenAI

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