alexgolikov/codility-swift ? reverse-engineered prompt

Build me a Swift 4 project with clean solutions for Codility style programming exercises.

I want the code organized by lesson or exercise, with one file per problem and each solution written in a simple, readable way. Make sure the answers are efficient and follow the usual Codility style, with clear function signatures and a few comments where the logic is not obvious.

Please include a small README that explains what the repository is, and keep the code easy to browse so I can open any lesson and understand the solution quickly. If it helps, add a few examples or notes in the files showing how each solution works.

If you need to check anything specific about Codility problem conventions or Swift 4 details, look up current docs online first.