The goal of the list is to find projects that will increase your understanding and skills as a programmer. This is a purposefully vague description, and I do be

The goal of the list is to find projects that will increase your understanding and skills as a programmer. This is a purposefully vague description, and I do believe that implementing basic algorithms and data structures can help you in your day to day work. I would never advocate doing such things in production work in languages that provide these tools for you, but it is helpful to realize why your high-level implementation should use a hash-map/dictionary instead of a list.