Advent of Code - 2019 edition. Ideal for those who are learning to program

Advent of Code is an annual coding event that takes place in December. Every day, participants solve a programming challenge presented in the form of a puzzle. Solutions are evaluated based on correctness and efficiency, making the tasks an excellent way to hone programming skills. In 2019, Advent of Code offered a variety of problems with increasing levels of difficulty, pushing participants to think critically and creatively. Participants can use different programming languages, making this event accessible to people with varying skill levels. After the event, the problems can serve as fantastic learning and practice materials for programmers at any level of expertise.