10 principais codechef.com concorrentes

hackerrank.com

hackerrank is the market-leading technical assessment and remote interview solution for hiring developers. learn how to hire technical talent from anywhere!

codeforces.com

codeforces. programming competitions and contests, programming community

leetcode.com

Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.

onlinegdb.com

Register for OnlineGDB account

onecompiler.com

Build stunning websites and apps instantly using AI with Vibe Coding on OneCompiler. Deploy your code online with one click and share your ideas with the world.

programiz.com

Stories, news and inspirations for programmers from Programiz.

geeksforgeeks.org

Practice DSA with GfG 160 - 160 DSA Problems. Includes bonus problems and videos to strengthen your DSA skills step by step. Free Career Guidance available too.

codewars.com

Achieve mastery through challenge. Practice coding on over 12,000 different coding problems.

jdoodle.com

JDoodle is an AI powered cloud-based online coding platform to learn, teach and compile in 88+ programming languages like Java, Python, PHP, C, C++

w3schools.com

W3Schools has created an animated HTML Tutorial like you have never seen before! The video contains 23 chapters, covering the basics of how to create a web page using HTML. The animated teacher will guide you through the subjects in a fun new format!