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187 questions in the library. A source association does not guarantee a future interview question.
Behavioral and leadership · Coding · Machine learning · ML system design · Other questions · System design
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Showing 26–50
Design and implement a user interface for a card game that includes functionality for dealing cards. Discuss the architecture, user interactions, and any animations or…
Companies: Apple, Airbnb
Last reported Jul 2026
Given a win condition and predefined game interfaces, implement a fully functional Rock Paper Scissors game. The solution should correctly handle game logic and player…
Companies: Apple
Last reported Jul 2026
Companies: Apple, Netlight, Uber
Last reported Jul 2026
Companies: Apple
Authentication & Authorization · System Design
Last reported Jul 2026
Companies: Apple
System Design
Last reported Jul 2026
Companies: Apple
System Design
Last reported Jul 2026
Given a list of absolute file paths, implement a search function that accepts a search string representing either a directory or file name. The function…
Companies: Apple
Last reported Jul 2026
Walk me through a significant technical project you've worked on in the past. Explain the technical challenges you faced, your approach to solving them, and…
Companies: Apple, Aloe Identity, Anthropic, Arize Ai +11
Last reported Jul 2026
Determine whether a string containing '(', ')', and '*' (where '*' can represent '(', ')', or empty) can be assigned so the parentheses are balanced…
Companies: Apple, Microsoft, Oracle
Bracket Sequences · Dynamic Programming · Greedy · Stack
Last reported Jul 2026
Companies: Apple
System Design
Last reported Jul 2026
Design a system that ingests real-time streaming events from users watching videos and provides an analytics dashboard that displays the total aggregated watch time across…
Companies: Apple
Last reported Jul 2026
Design an allocator for n memory units that supports allocating the leftmost contiguous block of a given size and freeing all units with a given…
Companies: Apple, OpenAI, Roblox
Array · Design · Hash Table · Simulation
Last reported Jul 2026
Companies: Apple
Last reported Jul 2026
Companies: Apple
Last reported Jul 2026
Companies: Apple
Observability · System Design
Last reported Jun 2026
Companies: Apple
Concurrency · System Design
Last reported Jun 2026
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: Apple, Adobe, Amazon, Atlassian +10
Array · Dynamic Programming
Last reported Jun 2026
Design and implement an object-oriented hotel reservation system. The system should include classes for managing rooms, bookings, and customer data, with a focus on proper…
Companies: Apple, Expedia
Last reported Jun 2026
Return the longest prefix string common to all strings in the array, or an empty string if none exists. The task reduces to comparing characters…
Companies: Apple, Amazon, Bloomberg, Google +3
Array · String · Trie
Last reported Jun 2026
Given a binary tree and two nodes p and q, find their lowest common ancestor (LCA) — the deepest node that has both p and…
Companies: Apple, Amazon, Atlassian, Canva +6
Binary Lifting · Binary Tree · Depth-First Search · Lowest Common Ancestor
Last reported Jun 2026
Companies: Apple, Bloomberg
Linked List
Last reported Jun 2026
Given two arrays of positive integers, return the maximum length (in digits) of a common leftmost-digit prefix shared by any number from arr1 and any…
Companies: Apple
Last reported Jun 2026
Design a system that records passenger check-ins and check-outs and returns the average direct travel time between two stations. The core challenge is maintaining active…
Companies: Apple, Axon, Bloomberg, Ramp
Last reported Jun 2026
Companies: Apple
System Design
Last reported Jun 2026
Given a list of chocolate bag sizes (each size may be used any number of times) and a target capacity n, find all unique combinations…
Companies: Apple
Last reported Jun 2026