💪 Big O Notation 💪
Definition and basic complexities.
🫥 Arrays 🫥
Arrays algorithms, their operations complexity.
📋 Linked List 📋
Difference from arrays and sentinel tail and head nodes.
🔢 Hashing 🔢
Hash sets and maps, counting / checking for existence.
🧑🤝🧑 Stack & Queue 🧑🤝🧑
FIFO & LIFO, monotonic stacks & queues.
🌳 Trees 🌳
Binary tree & binary search tree, DFS & BFS.