Advent of Code 2020 - BaseA Style (Day 5)

[Jean-Balteryx]

Discussion thread for day 5 of the Advent of Code : https://adventofcode.com/2020/day/5

[NicoleJohnson]

This AoC challenge had Alteryx written ALL OVER IT. 

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Can't say I've ever used BintoInt formula before... But OH what a joy it was to have it in the arsenal for this challenge! 

Cheers!

NJ

https://github.com/AlteryxNJ/AdventOfCode_2020

[jdunkerley79]

Very similar to @NicoleJohnson 

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BINTOINT all the way...

[AkimasaKajitani]

My solution at Day 5.

My approach is different from other's.

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Part 2 was simple, but I didn't know what it meant at first.

[cgoodman3]

Brute force following the logic of each step. So keen to understand the much shorter solution to this that others have posted!

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P.S. Just saw @NicoleJohnson and @jdunkerley79  convert to binary, and realised I completely missed this hint in the question🙄

[NedHarding]

There are 10 kinds of people in the world - those who understand binary and those who don't...  😉

Too easy.

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[patrick_digan]

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For part 2 I just sorted and found the difference instead of joining. 

[danilang]

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Replace+BintoInt 

 Dan

[Galouzis]

Exact same solution as @NicoleJohnson 😉

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[Jean-Balteryx]

1st solution I came up with aka "why make it simple when you can make it really complicated" :

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Then used my brain and came up with same solution as many people :

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