
LeetCode
Codility
CodeSignal
iMocha
HackerEarth
Codewars
TestGorilla
HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Stack Overflow
GitHub
Hacker News
Codingbat
CodeCombat
Invent With Python
CSS-Tricks
CodeGym.cc is an online Java programming course that is 80% based on practice.

Which is more popular?
Based on our record, HackerRank should be more popular than CodeGym.cc. It has been mentioned 67 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | hackerrank.com | codegym.cc |
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Overall verdict
Why this product is good
Recommended for
HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
No analysis of CodeGym.cc yet.
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Share your experience with using HackerRank and CodeGym.cc. For example, how are they different and which one is better?
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What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
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Recommendations tracked on public social media and blogs since March 2021.


This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
CodeGym is one of my favorite Core Java online courses. It’s very practice-oriented. There are more than 1,200 coding tasks with code validations and tips to help a student solve tasks. Also, it contains short lectures that cover all... - Source: dev.to / about 4 years ago
I started learning it from their russian version (this course was originally written in Russian) but if English version is as good as Russian, then it's probably the best way to start learning java, as they have probably few thousands of... Source: about 4 years ago
If you want to take a slightly longer, but imo easier path. I went from learning coding using https://codegym.cc/ to being a Software Quality Assurance Automation Engineer (current) and will eventually transition to BE Dev on my... Source: about 4 years ago
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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CodeSignal is the leading assessment platform for technical hiring.
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Hacker News is a social news website focusing on computer science and entrepreneurship. It is run by Paul Graham's investment fund and startup incubator, Y Combinator.
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