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rDrama Advent of Code Day 7: 25% Edition

Advent of Code is an annual Christmas themed coding challenge that runs from December 1st until christmas. Each day the coding problems get progressively harder. We have a leaderboard and pretty good turnout, so feel free to hop in at any time and show your stuff!

Whether you have a single line monstrosity or a beautiful phone book sized stack of OOP code, you can export it in a nice little image for sharing at https://carbon.vercel.app

What did you think about today's problem?

https://adventofcode.com/2023

Our Code is 2416137-393b284c (No need to share your profile, you have the option to join anonymously if you don't want us to see your github)

38
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Part 1:

https://i.rdrama.net/images/1701959865682186.webp

Part 2:

https://i.rdrama.net/images/17019598666575847.webp

Didn't like this one much.

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https://i.rdrama.net/images/1701966983161101.webp

CountTable is very handy here. toCountTable turns a list of items into a CountTable that maps each item to its amount. If you try to access a key that doesn't exist, it returns 0 rather than throwing.

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