Beginner
Of Course the first step has to be getting familiar with a language. If you are already familiar with an object oriented language then you can proceed further.
But, in case you are an absolute beginner I would suggest you to go for C++ as it's the most popular language for CP and most of the resources are C++ based.
STL
It’s a set of template classes to provide common programming data structures and functions. It's a really powerful tool without which even solving the simplest of problems would be a real pain.
| Resource | Objective | Format | Pointers |
|---|---|---|---|
| Competitive Programming/DSA Course (Hindi) | Learn/Practice | Videos | Watching and practicing till video 37 should be sufficient for this phase. You are contest ready at this point. |
| Competitive Programmer's Handbook | Learn/Practice | Book/PDF | Reading till chapter 4 should be sufficient. |
| [GYM] 100 Easy Problems (Bootcamp) - Codeforces | Practice | Blog | Try to solve as much as you can. No need to go day wise. |
Remember the goal here is to get familiar with the language and not to have a deep understanding of it. Getting deep insights is something which can be done as you progress further in CP.