Codeforces is a website for improving coding skills through various contests, problem solving, and educational resources. Users can sign up to participate in coding contests that test their skills in algorithmic problem solving, with both Div. 1 (for more experienced coders) and Div. 2 (for those still building their skills) categories available. Codeforces also offers resources such as a problemset, educational pages, and a rating system to track progress and compare skills with others. The website features a community of coders from all around the world, with various events and challenges to foster learning and growth in programming skills.
Is there an entry, which should be added to this list?