LeetCode

About LeetCode

LeetCode is a platform for practicing coding problems and preparing for technical interviews, offering over 4,250 questions across categories such as linked lists, binary trees, and algorithmic problems like Fibonacci sequences. It supports 14 programming languages and includes development tools such as a Playground for writing, testing, and debugging code online.

The platform includes a community and contest system, where users can participate in contests, earn rewards, and connect with other members. An "Explore" feature provides structured learning paths intended to guide users through skill development for programming careers.

LeetCode also works with companies to help them identify technical talent, offering services such as sponsored contests, online assessments, and training. It maintains a repository of interview resources tied to specific companies, aimed at candidates preparing for job interviews in the tech industry.

Key features

• Over 4250 practice questions across many topics
• Structured learning paths via the Explore tool
• Supports 14 popular coding languages
• Online Playground to write, test, and debug code
• Community contests with rewards
• Business services like sponsored contests, assessments, and training for companies

Frequently asked questions