Practice coding by solving ranked challenges called kata.
Codewars is a coding practice platform where you improve your skills by solving small challenges (kata) in the browser across many programming languages. After solving, you can compare your solution with others.
Many popular languages including Python, JavaScript, and C++.
Yes, a free account is required to train and track progress.
Information and links are accurate as of the time of writing and may change. Always verify on the official site. This is an independent guide, not affiliated with the listed services.