From f95660271f2397e286c527c9f459ab5d6df58310 Mon Sep 17 00:00:00 2001
From: Alexander Seiler <seileralex@gmail.com>
Date: Fri, 1 Dec 2023 15:28:57 +0100
Subject: [PATCH] [Day 1] Add solution

---
 README.md        |    2 +-
 data/day01.txt   | 1001 +++++++++++++++++++++++++++++++++++++++++++++-
 src/day01.jl     |   32 +-
 test/runtests.jl |    2 +-
 4 files changed, 1033 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index ea762c2..86aed27 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ This Julia package contains my solutions for [Advent of Code 2023](https://adven
 
 | Day | Problem | Time | Allocated memory | Source |
 |----:|:-------:|-----:|-----------------:|:------:|
-<!-- | 1 | [:white_check_mark:](https://adventofcode.com/2023/day/1) |  |  | [:white_check_mark:](https://github.com/goggle/AdventOfCode2023.jl/blob/master/src/day01.jl) | -->
+| 1 | [:white_check_mark:](https://adventofcode.com/2023/day/1) | 2.304 ms | 3.00 MiB | [:white_check_mark:](https://github.com/goggle/AdventOfCode2023.jl/blob/master/src/day01.jl) |
 <!-- | 2 | [:white_check_mark:](https://adventofcode.com/2023/day/2) |  |  | [:white_check_mark:](https://github.com/goggle/AdventOfCode2023.jl/blob/master/src/day02.jl) | -->
 <!-- | 3 | [:white_check_mark:](https://adventofcode.com/2023/day/3) |  |  | [:white_check_mark:](https://github.com/goggle/AdventOfCode2023.jl/blob/master/src/day03.jl) | -->
 <!-- | 4 | [:white_check_mark:](https://adventofcode.com/2023/day/4) |  |  | [:white_check_mark:](https://github.com/goggle/AdventOfCode2023.jl/blob/master/src/day04.jl) | -->
diff --git a/data/day01.txt b/data/day01.txt
index b06130d..cc647fb 100644
--- a/data/day01.txt
+++ b/data/day01.txt
@@ -1 +1,1000 @@
-Hello, AOC 2023!
\ No newline at end of file
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diff --git a/src/day01.jl b/src/day01.jl
index 5911a24..0c2995d 100644
--- a/src/day01.jl
+++ b/src/day01.jl
@@ -2,8 +2,38 @@ module Day01
 
 using AdventOfCode2023
 
+
 function day01(input::String = readInput(joinpath(@__DIR__, "..", "data", "day01.txt")))
-    return input
+    lines = split(rstrip(input), "\n")
+    return [solve(lines), solve(lines; part2 = true)]
+end
+
+firstlast(s::AbstractString) = s[1] * s[end]
+
+function repl(s::AbstractString)
+    s = replace(s,
+        "twone" => "twoone",
+        "oneight" => "oneeight",
+        "threeight" => "threeeight",
+        "fiveight" => "fiveeight",
+        "sevenine" => "sevennine",
+        "eightwo" => "eighttwo",
+        "eighthree" => "eightthree")
+    return replace(s,
+        "one" => "1",
+        "two" => "2",
+        "three" => "3",
+        "four" => "4",
+        "five" => "5",
+        "six" => "6",
+        "seven" => "7",
+        "eight" => "8",
+        "nine" => "9")
+end
+
+function solve(lines; part2 = false)
+    modifier = part2 ? repl : identity
+    return [parse(Int, firstlast(String([x for x in modifier(line) if isdigit(x)]))) for line in lines] |> sum
 end
 
 end # module
diff --git a/test/runtests.jl b/test/runtests.jl
index 09c3d36..c9137c2 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -2,5 +2,5 @@ using AdventOfCode2023
 using Test
 
 @testset "Day 1" begin
-    @test AdventOfCode2023.Day01.day01() == "Hello, AOC 2023!"
+    @test AdventOfCode2023.Day01.day01() == [54708, 54087]
 end