Compare AtCoder vs. freeCodeCamp in 2025

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Description

AtCoder is a Japanese website dedicated to programming contests, catering to participants ranging from novices to seasoned experts. It offers a platform for weekly online competitions in programming, designed to minimize the learning curve associated with personal computers. The focus is on enhancing convenience for competitive programming, deliberately overlooking other applications. Users can utilize any programming language supported in the AtCoder Regular Contest. Typically, participants are required to compete individually, as collaboration with others is not permitted. The winner is determined by the number of problems solved within the allocated time frame, with ties broken by the fastest completion time. Execution time is evaluated by considering both real time and CPU time, and while parallel processing is allowed, it does not guarantee a reduction in overall execution time. Participants are encouraged to hone their skills and improve their strategies with each contest, fostering a vibrant community of programmers.

Description

Discover the world of coding without any cost by building projects and obtaining certifications through freeCodeCamp, a nonprofit organization that operates under 501(c)(3) status. Our goal is to provide individuals with the opportunity to learn coding skills at no charge, achieved through an extensive collection of videos, articles, and interactive lessons that anyone can access freely. Additionally, we have established a vast network of study groups across the globe to foster community learning. Contributions to freeCodeCamp are directed towards advancing our educational programs and supporting essential resources like servers and staff. Since our inception in 2014, over 40,000 graduates from freeCodeCamp.org have successfully secured employment in technology firms. By joining our expansive community of learners, you can embark on a shared journey to become proficient in coding at no expense. If you are just starting your programming adventure, we suggest beginning with the foundational courses and completing the certifications sequentially. To earn each certification, you will need to complete five designated projects and ensure that all required tests are successfully passed, paving the way for your entry into the tech industry. With dedication and perseverance, you will be well on your way to launching a fulfilling career in software development.