Find the imposter.

Two people are claiming to be experts in LeetCode. One is an expert and one is bluffing. What question do you ask to find the imposter? (answer)

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With 2022 almost over, now is as good a time as any to answer this one.

How do I start competitive programming in 2022? (answer)

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It’s not the generous prize money.

What are the benefits of competitive coding for experienced software engineers? (answer)

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A similar question from last month: Why Do Many Programming Interviews Use Whiteboards? Here’s another perspective.

What is the importance of being able to code on a whiteboard in technical interviews? (answer)

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Some companies use an online judge as part of their hiring process.

When doing a HackerRank online assessment for a job, is it better to aim for speed or code quality (readability, optimizing the time complexity, etc.)? Why? (answer)

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A few people have actually done this (though more problems keep appearing).

If you were to finish all LeetCode problems, would you become good at competitive programming? (answer)

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For this week, a question about history.

Who invented competitive programming? (answer)

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This question was written by a bot, the Quora Prompt Generator. The answer was written by a human.

What is the best way to measure the difficulty of coding interview questions? (answer)

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There are some interesting discussions under the answers to this question.

Is there scientific evidence that LeetCode questions are a good predictor of job performance? (answer)

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Or they did back when they happened in person.

Why do many programming interviews use whiteboards? (answer)

See A Project for 2022 to find out what I’m working on this year.