Advanced Python Exercises

Advanced practice: flattening nested lists, deep copy, memoized Fibonacci, bracket validation, permutation generation, run-length encoding, and LRU cache.

Key Exercises

1. Flatten Nested: Recursion with isinstance check
2. Memoization: Cache previous results
3. Bracket Validation: Stack-based parsing
4. Permutations: Recursive generation

Tips

• Recursion for nested structures
• Memoization for optimization
• Stack for matching problems