
LeetCode
Exercism
Codewars
HackerRank
CodeSignal
CodinGame
CodeCombat
Project Euler is a series of challenging mathematical/computer programming problems that will...

HackerRank
AlgoExpert.io
CodeForces
LeetCode
Coderbyte
Interview Cake
Codewars
CodeChef is a not-for-profit educational initiative by Directi, an Indian software company. It is a global programming community that fosters learning and friendly competition, built on top of the world’s largest competitive programming platform.

Which is more popular?
Based on our record, Project Euler seems to be a lot more popular than Codechef. While we know about 415 links to Project Euler, we've tracked only 7 mentions of Codechef.
Website, pricing, platforms and company facts side by side.
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| Website | projecteuler.net | codechef.com |
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| Company | — | 2009 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Project Euler yet.
CodeChef is a not-for-profit educational initiative started by Directi more than a decade ago. We started with a dream of seeing an Indian team winning a gold medal at the ACM ICPC World Finals. In its quest for the same, CodeChef has built a self-driven community of the world's best programmers....
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Codechef yet.
Walkthroughs and reviews on video.
Project Euler Challenges 1–4 - Coding Challenges with Florin
More videos
In depth analysis of leetcode, codechef and codeforces | LEETCODE VS CODECHEF VS CODEFORCES IN HINDI
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Project Euler and Codechef. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Project Euler provides a large collection of challenges in the domain of computer science and mathematics. The challenges typically involve writing a small program to figure out the solution to a clever mathematical...
If you are studying algorithms and computer programming, chances are you’ve heard of Project Euler. A collection of mathematical problems made for problem solvers who are interested to combine mathematics and...
CodeChef is a competitive programming platform that offers practice problems, coding contests, and learning resources. It provides coding challenges, practice assistance, and exclusive practice paths to improve coding...
CodeChef is a platform that lets you practice, compete, and learn. You will get access to programs for beginners to experienced programmers. There are more than 3,000 problems available on the platform that vary in...
CodeChef offers coding challenges for free and connects you to the vast community of programmers. Moreover, they even do it all for free! Therefore, CodeChef is considered as one of the best LeetCode alternatives out...
Recommendations tracked on public social media and blogs since March 2021.


Let's hope this is going to help me solve some more Project Euler [1] problems! [1] https://projecteuler.net/. - Source: Hacker News / 4 months ago
Https://projecteuler.net/ for "Thinker" brain food. (it still has the issue of not being a pragmatic use of time, but there are plenty interesting enough questions which it at least helps). - Source: Hacker News / 7 months ago
I have a Project Euler (https://projecteuler.net/) account. Though I do not register at all on the leader board I will sometimes work obsessively on a problem just to make one of the level icons light up for me. There is not really... - Source: Hacker News / 9 months ago
Have you heard of codeforces.com, atcoder.jp, codechef.com, etc? Source: almost 3 years ago
Leetcode is good to learn basic algorithms because problem statements are usually straightforward. Competitive programming has much wider range of problems. Most popular sites for cp are codeforces.com , atcoder.jp, codechef.com . Source: almost 3 years ago
Learn Java with hands-on experience. I personally used codingbat.com a lot, but I've heard good things about codechef.com, which appears to even have a competitive option. Source: over 3 years ago
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