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Project Euler

Challenging maths and programming puzzles to sharpen problem solving.

Visit Project EulerFree4.7

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What is Project Euler?

Project Euler is a long-running collection of hundreds of mathematical problems that need both maths insight and a little code to solve. It is free, you can use any programming language, and your progress is tracked as you work through problems of rising difficulty.

Pros

  • Hundreds of clever problems
  • Any language works
  • Very satisfying progress

Cons

  • Gets very hard quickly
  • Plain, text-only site

Who should use Project Euler

Programmers and students who enjoy maths puzzles and want to sharpen their skills.

Who may not need it

Beginners looking for guided coding lessons.

Project Euler alternatives

Similar resources to Project Euler, picked from the directory.

Advent of Code

Focus: coding puzzles, practice and challenges. Shares programming with Project Euler. Rated 4.8 (Project Euler: 4.7).

WebsiteFreeWeb

Khan Academy

Focus: online courses, science and education. Shares maths with Project Euler. Adds iOS and Android. Rated 4.8 (Project Euler: 4.7).

WebsiteFreeWeb, iOS

PhET

Focus: science, simulations and education. Shares maths with Project Euler. Rated 4.8 (Project Euler: 4.7).

WebsiteFreeWeb

roadmap.sh

Focus: learning paths, developer careers and roadmaps. Shares programming with Project Euler. Freemium (Project Euler: Free). Same 4.7 rating.

WebsiteFree planWeb

Devhints

Focus: cheatsheets, reference and github. Shares programming with Project Euler. Rated 4.6 (Project Euler: 4.7).

WebsiteFreeWeb

Omni Calculator

Focus: calculator, finance and conversions. Shares maths with Project Euler. Adds iOS and Android. Rated 4.6 (Project Euler: 4.7).

WebsiteFreeWeb, iOS

Free alternatives to Project Euler

Free resources that cover similar ground.

Calculator Soup

Focus: calculators, finance and conversions. Shares maths with Project Euler. Rated 4.5 (Project Euler: 4.7).

WebsiteFreeWeb

QuickRef.ME

Focus: cheatsheets, reference and command line. Shares programming with Project Euler. Rated 4.5 (Project Euler: 4.7).

WebsiteFreeWeb

Desmos

Focus: graphing calculator, education and geometry. Shares maths with Project Euler. A web app, not a website. Adds iOS and Android. Rated 4.8 (Project Euler: 4.7).

Web AppFreeWeb, iOS

JavaScript.info

Focus: javascript, tutorial and web development. Shares programming with Project Euler. A course, not a website. Rated 4.8 (Project Euler: 4.7).

CourseFreeWeb

Eloquent JavaScript

Focus: javascript, ebook and exercises. Shares programming with Project Euler. A book, not a website. Same 4.7 rating.

BookFreeWeb
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