Hello everyone,

I am planning to participate in my National Olympiad in Informatics, which will likely be held around mid-February. I want to use the coming months wisely to prepare.

Could you please suggest:

1. The most important topics to focus on (data structures, algorithms, math, etc.)
2. How to balance theory and problem-solving practice
3. Useful resources for Olympiad-level preparation
4. Tips for building confidence before the contest

I have some basics in programming, but I want to get stronger step by step. Any advice would be greatly appreciated.

Thank you!