Data Structures

Data Structures are the fundamental building blocks of efficient software. They are the "jars" and "shelves" we use to organize data in our computer's memory.

Picking the wrong data structure can make your app 100x slower, while picking the right one can make impossible problems solvable in milliseconds.

The Toolbox

We have structured this directory into a comprehensive guide for every structure you'll need for production and interviews:

Linear Structures (The Basics)

• Arrays
• Linked Lists
• Stacks
• Queues
• Hash Tables

Non-Linear Structures (The Advanced)

• Trees
• Heaps
• Graphs
• Tries

Essential Concepts

• Strings
• Sets
• Disjoint Set Union (DSU)

visual-first Learning

Every structure in this guide includes Mermaid diagrams and real-world analogies (like "Egg Cartons" or "Treasure Hunts") to ensure you develop deep mental models, not just memorize syntax.

Select Introduction in the sidebar to begin!