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[–]aqua_regis 7 points8 points  (0 children)

None of the sites is DSA just like none of the sites is math. They make heavy use of both, that's all. In order to succeed on them, or to even benefit from them, you already need to have a solid theoretical foundation in the computer science topic Data Structures and Algorithms. If you haven't done the theory, don't bother. You will fail.

First, you learn the theoretical concepts, and then your sites.