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By Language

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+

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Python data structures

Python

Python 3.10+

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Java data structures

Java

Java 17+

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JavaScript data structures

JavaScript

ES2022+

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TypeScript data structures

TypeScript

TypeScript 5+

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Go data structures

Go

Go 1.21+

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C++ data structures

C++

C++20

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Rust data structures

Rust

Rust 2021 Edition

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Kotlin data structures

Kotlin

Kotlin 1.9+

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Swift data structures

Swift

Swift 5.9+

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Ruby data structures

Ruby

Ruby 3.2+

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PHP data structures

PHP

PHP 8.2+

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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