From e627fa68df9779061c84d7ccbc59368936325414 Mon Sep 17 00:00:00 2001 From: HeNine <> Date: Fri, 3 Dec 2021 07:27:31 +0100 Subject: [PATCH] Day III --- day03/Project.toml | 4 + day03/data/case00.txt | 12 + day03/data/case01.txt | 1000 +++++++++++++++++++++++++++++++++++++++++ day03/src/day03.jl | 64 +++ 4 files changed, 1080 insertions(+) create mode 100644 day03/Project.toml create mode 100644 day03/data/case00.txt create mode 100644 day03/data/case01.txt create mode 100644 day03/src/day03.jl diff --git a/day03/Project.toml b/day03/Project.toml new file mode 100644 index 0000000..67d962d --- /dev/null +++ b/day03/Project.toml @@ -0,0 +1,4 @@ +name = "day03" +uuid = "fcc5b334-7230-44ca-b424-8172184a1b5b" +authors = ["HeNine "] +version = "0.1.0" diff --git a/day03/data/case00.txt b/day03/data/case00.txt new file mode 100644 index 0000000..665fd57 --- /dev/null +++ b/day03/data/case00.txt @@ -0,0 +1,12 @@ +00100 +11110 +10110 +10111 +10101 +01111 +00111 +11100 +10000 +11001 +00010 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+## + +function task1(file) + bitvectors = eachline(file) .|> + line -> split(line, "") .|> + x -> parse(Int, x) + + findval(1, bitvectors) * + findval(0, bitvectors) +end + +function findval(gas, bitvectors, pos = 1) + if length(bitvectors) == 1 + return bitvectors[1]' * [2^i for i = (length(bitvectors[1])-1):-1:0] + end + + sums = reduce(+, bitvectors) + nrow = length(bitvectors) + + findval(gas, + filter( + x -> + x[pos] == ((gas == 1 && sums[pos] >= nrow / 2) || (gas == 0 && sums[pos] < nrow / 2)), + bitvectors + ), + pos + 1) +end + +## + +println("Day 03 – Task 1 – Case 0") +open(task1, "day03\\data\\case00.txt") |> println + +println("Day 03 – Task 1 – Case 1") +open(task1, "day03\\data\\case01.txt") |> println \ No newline at end of file