this post was submitted on 22 Apr 2025
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Leetcode alternative for [Hard] problems w/o paywall (lemmy.world)
submitted 8 months ago by hexabs@lemmy.world to c/programming@lemmy.ml
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I'm currently job hunting and looking for a platform to prep for interviews.

Leetcode is nice but it locks hard problems behind a paywall that I honestly can't afford right now.

I mean I can still read the problem from https://leetcode.ca/, but it's hard to test it against a good set of test cases.

Please share alternative portals with a decent hard problem collection with testcases

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[–] snek_boi@lemmy.ml 2 points 8 months ago (1 children)

CodeWars is way cheaper.

Would Project Euler satisfy your requirements?

[–] hexabs@lemmy.world 1 points 8 months ago (1 children)

I've tried Euler years ago, it's got great problems, but not very easy to test your solutions.

I registered on Codewars now and attempted a few Katas. The portal is pretty barebones and that sits fine with me! However I don't see the same caliber of problems at higher difficulties that leetcode offer. The problems are also lacking (Trees are not a tag!) - for instance Dynamic programming only has 3 problems across the site. Am I missing something? Will I unlock all the problems after upgrading to Red?

[–] snek_boi@lemmy.ml 1 points 8 months ago

Actually, you made me wonder if CodeWars and LeetCode are comparable. I do remember CodeWars having relatively simple problems.