Advent of Code 2022

adventofcode.com/2022

This will be the best advented code ever! Trying to use test driven development and typed python.

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Things I learned

Python

• set()s are awesome to get unique elements from a list
• set()s also allow you to find intersections and overlaps
• need to tell VS Code to use setup.cfg for activated linters (see .vscode/settings.json)

Programming approach

• TDD on top level is always worth it
• adding tests for smaller steps creates very modular code..maybe too many functions, seem to lack cohesion because all functions are only used one time
• beware of edge cases (day8: extreme values sitting on the edge of the map)
• just because you think that two implementations do the same thing, does not mean they do (test them both)
• using dict() or list() for instantiation is slower than using the literals {}, []
• using typing.Dict/List was necessary pre Python 3.10 but now dict/list/tuple[] are preferred solutions without additional imports
• a customized solution may be a lot faster than a generic one (day12)