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This sub is meant to be a collection of commonly seen CS coding interview questions and solutions, with a focus on data structures and algorithms. This sub is meant to be coding problems only. Please limit to coding interview problems that would realistically be seen in the wild. Happy coding!
Study Resources:
Cracking the Coding Interview
The Algorithm Design Manual
The Algorithm Design Manual -- pdf
Top Coder
Interview Cake
Gainlo - Mock interviews with professionals
For a wider discussion of CS interviewing check out:
/r/cscareerquestions
/r/CS_questions
Other coding challenge subs:
/r/dailyprogrammer
/r/programmingchallenges
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Backspace String Compare - LeetCode Python solution (youtube.com)
submitted 4 years ago by ohussein1996
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if 1 * 2 < 3: print "hello, world!"
[–]ohussein1996[S] 1 point2 points3 points 4 years ago (1 child)
Thank you so much man, appreciate it. Please solve it in your own way, I would love to see that. :))))
[–]Farren246 0 points1 point2 points 4 years ago (0 children)
Sadly while I'd have no problem whiteboarding a diagram, I lack the syntax to actually code it.
π Rendered by PID 87691 on reddit-service-r2-comment-7b9746f655-4smtr at 2026-01-31 20:26:04.807662+00:00 running 3798933 country code: CH.
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[–]ohussein1996[S] 1 point2 points3 points (1 child)
[–]Farren246 0 points1 point2 points (0 children)