Which coding resource provides gamified challenges to improve programming skills?

HackerRank is a coding platform designed to offer gamified challenges that enhance programming skills. The platform features a wide variety of coding problems and competitions that users can engage with, allowing them to practice and improve their programming abilities in a fun and interactive manner. Through the use of points, badges, and leaderboards, HackerRank motivates users to solve challenges and compete with others, making the learning experience enjoyable and effective.

While FreeCodeCamp also offers coding challenges, its main focus is more on project-based learning through comprehensive coding curricula rather than gamification. EdX provides structured courses and certification programs, emphasizing formal education rather than challenge-based learning. W3Schools serves as a resource for web development tutorials and references, lacking the gamified elements present in HackerRank. This makes HackerRank the correct choice as it stands out as a resource specifically aimed at improving programming skills through engaging, game-like challenges.