What level of algorithm difficulty do you plan to refine your skills on?

The choice of difficulty level for algorithms to hone skills depends on the current level and development goals.

For beginners (junior), it is recommended to start with basic algorithms and data structures, such as:

• Sorting algorithms (bubble sort, insertion sort)
• Search algorithms (linear, binary)
• Working with arrays and lists
• Simple recursive problems

For intermediate level (middle), it is advisable to move on to more complex problems:

• Graph algorithms (depth-first search, breadth-first search, shortest paths)
• Dynamic programming
• Advanced data structures (trees, hash tables)
• Optimization problems and greedy algorithms

It is important to gradually increase the difficulty by solving problems on platforms like LeetCode, Codeforces, or HackerRank to develop analytical thinking and the ability to apply algorithms in practice.