From 9fe985a53c95bd6358d5adc3e71f14bbf154d580 Mon Sep 17 00:00:00 2001 From: Alexander Munch-Hansen Date: Sat, 2 Dec 2017 00:12:36 +0100 Subject: [PATCH] Added first challenge --- README.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/README.md b/README.md index 0c68c57..dce34e4 100644 --- a/README.md +++ b/README.md @@ -2,3 +2,8 @@ This repository is dedicated to my attempts at advent of code anno 2017. Some of the code will be somewhat quick and dirty when I first upload it, since it might be an initial attempt, however things should become somewhat clean after I've rewritten the attempts later. + +## The 1st of December +For the first challenge, part one, one had to review a sequence of digits and find the `sum` of all the digits, which match the next digit in the list. This list is circular, thus the last digit will be able to match with the first digit, such that $1221$ will have a `sum` of $3$. + +For the second part, one now had to, instead of considering the next digit in the list, consider the digit *halfway around* the circular list, so $1212$ would produce a `sum` of $6$.