Genesis! (plus first two day solutions added)

Author: cr0t

README.md

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+# Advent of Code 2023
+
+
+Use [Livebook](https://livebook.dev/) server to run these `.livemd` files.
+
+```console
+$ livebook server
+[Livebook] Application running at http://localhost:8080/?token=***
+```
+
+Open the given link and then `.livemd` file you want.
+
+Input can be found in the similarly-named files.
+
+## Solutions' Notes
+
+[day01.livemd](day01.livemd)
+
+- Part 1: Regex for digits only, take first and last, calculate
+- Part 2: Regex for digits and words, convert all to digits, take first and last, calculate
+
+[day02.livemd](day02.livemd)
+
+- Shared: parse into a list of `{game_id, [sets]}` where `sets` is a list of `{n, color}`
+- Part 1: check if game is possible – if all sets are possible; set is possible when all the items are possible (less than a max number of cuber of some color)
+- Part 2: find a minimal set needed for each game, calculate
+
+[day03.livemd](day03.livemd)
+
+- Shared:
+- Part 1:
+- Part 2: