If you're aiming for FAANG-level companies, practicing DSA (Data Structures and Algorithms) is non-negotiable. These 10 coding challenges are a must:
- Two Sum - Array basics & hashmap
- Longest Substring Without Repeating Characters - Sliding window
- Median of Two Sorted Arrays - Binary search (Hard)
Use platforms like LeetCode or InterviewEasy to practice daily and track your improvement.