Code Arcade might be a bit more popular than hackattic. We know about 4 links to it since March 2021 and only 3 links to hackattic. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I am aware of few of the resources which I've listed down below, will appreciate if you guys can share bit more. - https://hackattic.com/ : Interesting programming Problems. - Source: Hacker News / 10 months ago
Also check out https://hackattic.com/ it has some really fun problems. - Source: Hacker News / over 1 year ago
What sort of programming would you like to do? Any real world challenges you are looking to solve? For practice “challenges” I really like https://hackattic.com/. Source: almost 3 years ago
You can practice your code solving skills here: Https://app.codesignal.com/arcade Https://leetcode.com/problemset/all/. Source: 12 months ago
CodeSignal's Arcade (signup required) has a lot of practice problems at different levels that can help break you out of the mindset of copying tutorial code. Source: about 2 years ago
I like the Databases section of CodeSignal Arcade. Problems increase in difficulty, plus I've found it's the platform a lot of companies use for SQL assessment so you'll get a good sense of the type of questions to expect. Source: about 2 years ago
Codesignal has a good set of SQL questions. Not sure they "support" Postgres, but there's 84 free levels under the Arcade section. https://app.codesignal.com/arcade. Source: over 2 years ago
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