In many Quora questions, people ask what’s required to start competitive programming. It’s not always clear what they’re looking for with these questions, since you don’t need to apply to be a competitive programmer. Online judges are free. Just register and try one out. Here’s a question where the writer is a bit more specific about what they’re asking:
Do I need to be good at algorithms to begin competitive programming or can I start from the bottom and get better by doing? (answer)
Why is this post so short? Find the answer, and links to a blog table of contents, at A Summer 2019 Experiment.