P
ProtoPlay
System DesignData Structures

Arrays & Strings

Static vs DynamicTwo Pointers

Linked Lists

Singly vs DoublyFast & Slow Pointers

Hashing

Hash Tables

Trees

Binary Search TreeTraversals

Graphs

BFS & DFS

Gamified Challenges

Algorithm Arena

Data Structures

Master the fundamental building blocks of efficient algorithms.

New: Memory Master

Algorithm Arena

Solve interactive puzzles to master pointers, memory, and complexity. Can you optimize the traversal sequence?

Enter Arena

Arrays & Strings

Static vs DynamicTwo Pointers

Linked Lists

Singly vs DoublyFast & Slow Pointers

Hashing

Hash Tables

Trees

Binary Search TreeTraversals

Graphs

BFS & DFS

Gamified Challenges

Algorithm Arena