Browse Code Maps

Sorted by

most popular difficulty name

Language

All Python TypeScript JavaScript Java C# C++ CSS Dart Elixir Go Groovy HTML JSON Kotlin Less Lua Markdown Objective-C Other Perl PHP Ruby Rust Sass Scala SCSS Shell SQL Svelte Swift Vue YAML

Difficulty

All Easy Medium Hard

Python Essentials EASY

{ Python }

173 locations 100+ plays

Python one-liners from popular libraries - perfect for beginners or for a casual challenge. Immediate context makes it possible to get the answer without browsing much code.

Play More details

Intermediate Python MEDIUM

{ Python }

223 locations 100+ plays

Challenging for Python coders with a decent amount of experience. Includes locations that require knowledge of advanced language features or of the standard library. Often requires reading and understanding a chunk of surrounding code.

Play More details

JavaScript Essentials EASY

{ JavaScript }

88 locations 100+ plays

JS one-liners from popular libraries - perfect for beginners or for a casual challenge. Immediate context makes it possible to get the answer without browsing much code.

Play More details

Java Essentials EASY

{ Java }

97 locations 100+ plays

Java one-liners from popular libraries - perfect for beginners or for a casual challenge. Immediate context makes it possible to get the answer without browsing much code.

Play More details

TypeScript Essentials EASY

{ TypeScript }

147 locations 100+ plays

TS one-liners from popular libraries - perfect for beginners or for a casual challenge. Immediate context makes it possible to get the answer without browsing much code.

Play More details

Intermediate Java MEDIUM

{ Java }

103 locations 100+ plays

Challenging for JS coders with a decent amount of experience. Includes locations that require knowledge of advanced language features or common libraries. Often requires reading and understanding a chunk of surrounding code.

Play More details

JS Algorithms for Beginners EASY

{ JavaScript }

283 locations <10 plays

JavaScript data structures and algorithms challenges from the insanely popular repo https://github.com/trekhleb/javascript-algorithms (~200K stars!)

Ideal game for the active study of basic Computer Science concepts with real JS code

Includes content from all data structures tagged for beginners (Linked List, Queue, Stack, Hash Table, Heap, Priority Queue) as well as some beginner algorithms (from the categories: Math, Sets, Strings, Searches, Sorting, Linked Lists, Trees, Graphs)

Play More details

Advanced JS Algorithms HARD

{ JavaScript }

362 locations <10 plays

Advanced JavaScript data structures and algorithms challenges from the insanely popular repo https://github.com/trekhleb/javascript-algorithms (~200K stars!)

Hard problems! Ideal game for the active study of advanced Computer Science concepts with real JS code but you'll need some prior background in algorithms.

Includes content from all data structures and algorithms tagged as advanced in the repo: Tries, Trees, Graphs, Disjoint Sets, Bloom Filters, LRU Caches, Math, Sets, Strings, Graphs

Play More details

Python Algorithms & Data Structures (The Algorithms) MEDIUM

{ Python }

136 locations <10 plays

Python algorithms and data structures from The Algorithms: https://github.com/TheAlgorithms/Python

Ideal game for the active study of fundamental Computer Science concepts with real Python code

Includes beginner to intermediate content from Arrays, Linked Lists, Queues, Stacks, Heaps, Trees, Hashing, Backtracking, Bit manipulation, Conversions

Play More details

fock-logger MEDIUM

{ TypeScript }

11 locations <10 plays

Play More details

Intermediate JavaScript MEDIUM

{ JavaScript }

108 locations 100+ plays

Play More details

Intermediate TypeScript MEDIUM

{ TypeScript }

144 locations 100+ plays

Challenging for TS coders with a decent amount of experience. Includes locations that require knowledge of advanced language features or common libraries. Often requires reading and understanding a chunk of surrounding code.

Play More details