HackerRank is less active than LeetCode, but some companies use it for hiring. Here’s a question about good problem-solving time:

I’m solving Medium HackerRank.com problems in 45 minutes. Is that bad? (answer)

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

A question about LeetCode statistics:

I solved a LeetCode question, but my solution is better than only 5% of submissions, which means my solution is not better than 95% of submissions. Should I worry about this as a computer programmer? Does this mean I should write better algorithms? (answer)

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

Someone asked the following question on Quora: “How long do I have to wait, before I see the answer to a problem in programming?” What do you think it means?

Quora allows anyone to edit a question, and sometimes I edit questions to make them clearer. But in this case a few people had already answered the original question. The trend on Quora is for people to answer questions even if they don’t make sense. Maybe they have learned that the question author rarely comes back to clarify their intention.

I think the other answers misinterpreted the question. Here’s my answer:

How long do I have to wait, before I see the answer to a problem in programming? (answer)

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

Frankenstein’s Q&A site:

What do you get when you combine Stack Overflow with Quora? (answer)

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

Is their secret out?

Is it true that competitive programming platforms use problem solving from coders for AI training? (answer)

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

If it isn’t interesting already, can you make it interesting?

How do I make competitive programming interesting for students? (answer)

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

Variations of this question come up a lot, but I think it’s a key part of creating a study strategy.

As a software engineer who is using LeetCode to prepare for coding interviews, how long do you try to solve a problem by yourself before giving up and looking at the solution? (answer)

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

Badges, badges, badges….

How do you get a LeetCode badge? (answer)

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

(Also LeetCode and HackerRank problems).

Why do competitive programming problems use so much math? (answer)

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

Practice problems for coding interviews often have multiple solutions. Is it a good idea to learn them all?

Should I learn every solution to a coding interview problem? (answer)

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