Interview Questions

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6,535 questions
548 companies
49 roles
Last updated Nov 2026

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Senior Software EngineerGoogle·7 questions

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Product ManagerMeta·6 questions

Product ManagerPerplexity AI·6 questions

Program EngineerAnduril·8 questions

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Staff Software Engineer, InfrastructureAnthropic·6 questions

Product Manager, GeminiGoogle·7 questions

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Product ManagerMeta·7 questions

Growth Lead (B2B / ChatGPT Team)OpenAI·9 questions

Senior Full Stack EngineerNetflix·6 questions

You are on call and a colleague tells you the app is rendering too slowly. What do you do?
10 months ago
Basketball players A and B play two games, and A has the better shooting average in each. Can B have the better average over the two games combined? If so, give an example.
12 hours ago
Each streetlight lights the closed segment from c - r to c + r. Return the coordinate lit by the most lights, taking the smallest on ties.
10 months ago
Rotate an n by n matrix clockwise by 90 degrees between one and four times while keeping the entries on both diagonals fixed.
10 months ago
Why do you want to work at this firm, and why this role?
+612 hours ago
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You draw cards one at a time from a standard 52-card deck. What is the expected number of cards drawn up to and including the first ace?
+212 hours ago
Design Spotify (a music streaming service).
12 hours ago
Write an iterator that walks over all elements of a vector<vector<T>> in order.
12 hours ago
Given a vector of strings (words in order), find all adjacent word pairs (bigrams) and the positions where each pair occurs.
12 hours ago
Given a boolean expression of T and F joined by & and |, such as T|F&T|F, count the ways to place parentheses so that it evaluates to True.
2 years ago
Describe the ways processes can communicate with each other and the trade-offs of each.
5 years ago
Given an unsorted integer array that may contain duplicates and a target, find a pair of elements that sums to the target in O(N) time.
12 hours ago
Implement a hash map with chaining, then replace each chain with a treap. How does a treap's expected O(log n) differ from the strict O(log n) of a balanced tree?
5 years ago
Solve for x: (1/3)(x + 2) - 2 = 4.
12 hours ago
Design a function that returns true for the first 20 calls within each one-second interval and false for the remaining calls in that interval.
12 hours ago
Without a calculator, turn 0.59 / 0.73 into a decimal.
12 hours ago
What happens in the operating system from the moment you type ./program in a shell until the program runs?
5 years ago
Write code that determines whether the machine stores integers in little-endian or big-endian byte order. You decide what the input and output should be.
12 hours ago
How are virtual functions implemented in C++? Explain the vtable and the vptr.
12 hours ago
Every value in an integer array appears exactly twice except one value that appears once. Find that value.
12 hours ago

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Interview Questions

You are on call and a colleague tells you the app is rendering too slowly. What do you do?

Basketball players A and B play two games, and A has the better shooting average in each. Can B have the better average over the two games combined? If so, give an example.

Each streetlight lights the closed segment from c - r to c + r. Return the coordinate lit by the most lights, taking the smallest on ties.

Rotate an n by n matrix clockwise by 90 degrees between one and four times while keeping the entries on both diagonals fixed.

Why do you want to work at this firm, and why this role?

You draw cards one at a time from a standard 52-card deck. What is the expected number of cards drawn up to and including the first ace?

Design Spotify (a music streaming service).

Write an iterator that walks over all elements of a vector<vector<T>> in order.

Given a vector of strings (words in order), find all adjacent word pairs (bigrams) and the positions where each pair occurs.

Given a boolean expression of T and F joined by & and |, such as T|F&T|F, count the ways to place parentheses so that it evaluates to True.

Describe the ways processes can communicate with each other and the trade-offs of each.

Given an unsorted integer array that may contain duplicates and a target, find a pair of elements that sums to the target in O(N) time.

Implement a hash map with chaining, then replace each chain with a treap. How does a treap's expected O(log n) differ from the strict O(log n) of a balanced tree?

Solve for x: (1/3)(x + 2) - 2 = 4.

Design a function that returns true for the first 20 calls within each one-second interval and false for the remaining calls in that interval.

Without a calculator, turn 0.59 / 0.73 into a decimal.

What happens in the operating system from the moment you type ./program in a shell until the program runs?

Write code that determines whether the machine stores integers in little-endian or big-endian byte order. You decide what the input and output should be.

How are virtual functions implemented in C++? Explain the vtable and the vptr.

Every value in an integer array appears exactly twice except one value that appears once. Find that value.

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