Data Structures

12 essential data structures explained with Big O complexity, animated visuals, and code samples across 12 programming languages. Pick yours.

C# data structures

C#

.NET 8+

Python data structures

Python

Python 3.10+

Java data structures

Java

Java 17+

JavaScript data structures

JavaScript

ES2022+

TypeScript data structures

TypeScript

TypeScript 5+

Go data structures

Go

Go 1.21+

C++ data structures

C++

C++20

Rust data structures

Rust

Rust 2021 Edition

Kotlin data structures

Kotlin

Kotlin 1.9+

Swift data structures

Swift

Swift 5.9+

Ruby data structures

Ruby

Ruby 3.2+

PHP data structures

PHP

PHP 8.2+

What you get for each language

+12 data structures with animated visuals showing how they work
+Big O complexity table for every operation
+Syntax-highlighted code samples with interview patterns
+Decision guide for choosing the right collection