LeetCode is a popular platform designed to help software engineers prepare for technical interviews. It features a large collection of coding problems across various difficulty levels, allowing users to practice everything from basic concepts to advanced algorithms.
The platform includes an online code editor with support for multiple programming languages, and automatically evaluates submissions using hidden test cases to provide instant feedback. In addition to practice, LeetCode hosts regular timed contests where users solve problems under pressure and compete on live leaderboards, simulating real interview conditions.