Leetcode alternative for [Hard] problems w/o paywall

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

11 points · 3 comments · view on lemmy.world

3 Comments

snek_boi@lemmy.ml · 2 pts · 1y (2 replies)

CodeWars is way cheaper.

Would Project Euler satisfy your requirements?

hexabs@lemmy.world · 1 pts · 1y (1 reply)

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 · 2 pts · 1y

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