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104 questions in the library. A source association does not guarantee a future interview question.
Behavioral and leadership · Coding · Machine learning · Other questions · System design
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Compare and contrast the three synchronization primitives (mutex, semaphore, and spinlock) in terms of their implementation, use cases, and performance characteristics.
Companies: NVIDIA
Last reported Feb 2026
Implement a thread-safe message queue that supports one producer and multiple consumers. The solution should correctly handle concurrent access and synchronization between the…
Companies: NVIDIA
Last reported Feb 2026
Design a system that efficiently distributes 500GB machine learning model files from an external repository to 1000 datacenter servers over a 10Gbps link, optimizing for…
Companies: NVIDIA, Anthropic, Google
Last reported Feb 2026
Contention on scarce inventory: seat holds with TTL, locking/optimistic concurrency, payments, flash-sale traffic and virtual queues.
Companies: NVIDIA, Agoda, Airwallex, Amazon +15
concurrency · idempotency · load-shedding · locking
Last reported Jan 2026
Companies: NVIDIA, Amazon, Google, Meta +3
Last reported Jan 2026
Partition the given job times into k worker workloads so that the maximum sum assigned to any worker is as small as possible — a…
Companies: NVIDIA, Snowflake
Last reported Jan 2026
Design and implement an in-memory key-value store that supports basic operations (get, put, delete) with automatic key expiration based on TTL (time-to-live). The…
Companies: NVIDIA, Airbnb, Geminus Tech, Netflix
Last reported Jan 2026
Companies: NVIDIA, Google, Meta, Oracle +2
Last reported Jan 2026
Companies: NVIDIA
Last reported Jan 2026
Companies: NVIDIA
Last reported Jan 2026
For each node c in a weighted tree, count unordered pairs of distinct servers (a,b) (neither equal to c) such that the distances from c…
Companies: NVIDIA, Rippling
Array · Depth-First Search · Tree
Last reported Dec 2025
Design a restaurant booking system that allows users to search for restaurants by name, cuisine, or location (defaulting to 30 miles radius), and make, edit…
Companies: NVIDIA, Amazon, C3 Ai, Gusto +1
Last reported Dec 2025
Given an absolute Unix-style path, produce its canonical simplified form by collapsing multiple slashes and resolving "." (current dir) and ".." (parent dir) references. This…
Companies: NVIDIA, Meta, Roblox, Snowflake
Stack · String
Last reported Dec 2025
Design an online programming judge system for coding competitions where users can submit solutions to algorithmic problems, get real-time feedback on code execution, and…
Companies: NVIDIA, Amazon, LinkedIn, Lyft +4
Last reported Dec 2025
Companies: NVIDIA
Last reported Nov 2025
Companies: NVIDIA
Last reported Nov 2025
Companies: NVIDIA
Last reported Nov 2025
Companies: NVIDIA
Last reported Nov 2025
Companies: NVIDIA
Last reported Nov 2025
Companies: NVIDIA
Companies: NVIDIA
Given an array of daily stock prices, compute the maximum profit achievable from exactly one buy-before-sell transaction (i.e., the largest prices[j] - prices[i] with j…
Companies: NVIDIA, Adobe, Amazon, Apple +10
Array · Dynamic Programming