Coding challenges are tasks or problems designed to test and improve programming skills. They often involve writing code to solve specific issues, such as algorithms, data structures, or logic puzzles. These challenges can be found on various online platforms, where users can submit their solutions and receive feedback. Participating in coding challenges can enhance problem-solving abilities and coding proficiency. They are popular among software developers, students, and anyone interested in improving their programming knowledge. Many coding competitions, like Hackathons or Codeforces contests, also feature these challenges, fostering a sense of community and collaboration among participants.