How did you learn algorithms and data structures?

To master algorithms and data structures, I used a systematic approach: first studying the theory, then solving problems on platforms like LeetCode, Codeforces, or HackerRank. This helped reinforce knowledge through practice and understand how to apply different data structures (lists, trees, hash tables) and algorithms (sorting, searching, dynamic programming).

For example, to understand how binary trees work, I implemented depth-first and breadth-first traversals, as well as node insertion and deletion operations. Such practical experience helps better assimilate the material and prepares for solving real interview problems.