📄️ 👆👆 Two Pointers
The gateway pattern to coding interviews. Master this first.
📄️ 🪟 Sliding Window
The go-to pattern for subarray/substring problems.
📄️ 🔍 Binary Search
The O(log n) superpower - eliminate half the search space each step.
📄️ 🧩 Dynamic Programming
The pattern that separates senior from junior engineers in interviews.