From 50fbfd54381ba9932fa72d0325c082bb122d67a3 Mon Sep 17 00:00:00 2001
From: gabe <gabevenberg@gmail.com>
Date: Thu, 1 Dec 2022 01:28:14 -0600
Subject: [PATCH] 3/4 of the way through day 1.

---
 Cargo.toml            |    4 +
 src/day01/input.txt   | 2255 +++++++++++++++++++++++++++++++++++++++++
 src/day01/parse.rs    |   49 +
 src/day01/part1.rs    |   27 +
 src/day01/part2.rs    |   25 +
 src/day01/solve.rs    |   14 +
 src/template/parse.rs |   17 +
 src/template/part1.rs |    4 +-
 src/template/part2.rs |    4 +-
 src/template/solve.rs |    2 +
 10 files changed, 2397 insertions(+), 4 deletions(-)
 create mode 100644 src/day01/input.txt
 create mode 100644 src/day01/parse.rs
 create mode 100644 src/day01/part1.rs
 create mode 100644 src/day01/part2.rs
 create mode 100644 src/day01/solve.rs
 create mode 100644 src/template/parse.rs

diff --git a/Cargo.toml b/Cargo.toml
index f613984..1e5d460 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,5 +10,9 @@ edition = "2021"
 name="template"
 path="src/template/solve.rs"
 
+[[bin]]
+name="day01"
+path="src/day01/solve.rs"
+
 [dependencies]
 regex="1"
diff --git a/src/day01/input.txt b/src/day01/input.txt
new file mode 100644
index 0000000..448e913
--- /dev/null
+++ b/src/day01/input.txt
@@ -0,0 +1,2255 @@
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diff --git a/src/day01/parse.rs b/src/day01/parse.rs
new file mode 100644
index 0000000..f2c7c22
--- /dev/null
+++ b/src/day01/parse.rs
@@ -0,0 +1,49 @@
+#[derive(Debug, PartialEq, Eq)]
+pub struct Elf(pub Vec<usize>);
+
+pub fn parse(input: &str) -> Vec<Elf> {
+    input.trim()
+        .split("\n\n")
+        .map(|group| {
+            Elf(group
+                .split('\n')
+                .map(|line| {
+                    line.parse().unwrap()
+                })
+                .collect())
+        })
+        .collect::<Vec<Elf>>()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse() {
+        let input = "1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000";
+        assert_eq!(
+            parse(input),
+            vec![
+                Elf(vec![1000, 2000, 3000]),
+                Elf(vec![4000]),
+                Elf(vec![5000, 6000]),
+                Elf(vec![7000, 8000, 9000]),
+                Elf(vec![10000])
+            ]
+        );
+    }
+}
diff --git a/src/day01/part1.rs b/src/day01/part1.rs
new file mode 100644
index 0000000..b2d1150
--- /dev/null
+++ b/src/day01/part1.rs
@@ -0,0 +1,27 @@
+use crate::parse;
+
+pub fn part1(input: &[parse::Elf]) -> usize {
+    input
+        .iter()
+        .map(|elf| elf.0.iter().sum::<usize>())
+        .max()
+        .unwrap()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part1() {
+        let input = vec![
+            parse::Elf(vec![1000, 2000, 3000]),
+            parse::Elf(vec![4000]),
+            parse::Elf(vec![5000, 6000]),
+            parse::Elf(vec![7000, 8000, 9000]),
+            parse::Elf(vec![10000]),
+        ];
+
+        assert_eq!(part1(&input), 24000);
+    }
+}
diff --git a/src/day01/part2.rs b/src/day01/part2.rs
new file mode 100644
index 0000000..b5be1f3
--- /dev/null
+++ b/src/day01/part2.rs
@@ -0,0 +1,25 @@
+use crate::parse;
+
+pub fn part2(input: &[parse::Elf]) -> usize {
+    input
+        .iter()
+        .map(|elf| elf.0.iter().sum::<usize>())
+        // not sure what to do next here, how do I get the 3 max values from here?
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part2() {
+        let input = vec![
+            parse::Elf(vec![1000, 2000, 3000]),
+            parse::Elf(vec![4000]),
+            parse::Elf(vec![5000, 6000]),
+            parse::Elf(vec![7000, 8000, 9000]),
+            parse::Elf(vec![10000]),
+        ];
+        assert_eq!(part2(&input), 45000);
+    }
+}
diff --git a/src/day01/solve.rs b/src/day01/solve.rs
new file mode 100644
index 0000000..0ca5912
--- /dev/null
+++ b/src/day01/solve.rs
@@ -0,0 +1,14 @@
+mod part1;
+mod part2;
+mod parse;
+
+fn main() {
+    let _input = include_str!("./input.txt");
+    let _structured_input = parse::parse(_input);
+
+    println!("Part One");
+    println!("Result: {}", part1::part1(&_structured_input));
+
+    println!("Part Two");
+    println!("Result: {}", part2::part2(&_structured_input));
+}
diff --git a/src/template/parse.rs b/src/template/parse.rs
new file mode 100644
index 0000000..e0d5990
--- /dev/null
+++ b/src/template/parse.rs
@@ -0,0 +1,17 @@
+pub fn parse(input: &str) -> usize {
+    println!("{}", input);
+    0
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse() {
+        let input =
+"test"
+;
+        assert_eq!(parse(input), 0);
+    }
+}
diff --git a/src/template/part1.rs b/src/template/part1.rs
index d2d5224..7e82d16 100644
--- a/src/template/part1.rs
+++ b/src/template/part1.rs
@@ -1,9 +1,9 @@
 pub fn part1() -> usize {
-    return 0;
+    0
 }
 
 #[cfg(test)]
-mod day01 {
+mod tests {
     use super::*;
 
     #[test]
diff --git a/src/template/part2.rs b/src/template/part2.rs
index 7853f98..d0b4f0c 100644
--- a/src/template/part2.rs
+++ b/src/template/part2.rs
@@ -1,9 +1,9 @@
 pub fn part2() -> usize {
-    return 0;
+    0
 }
 
 #[cfg(test)]
-mod day01 {
+mod tests {
     use super::*;
 
     #[test]
diff --git a/src/template/solve.rs b/src/template/solve.rs
index ab305ff..e15c48c 100644
--- a/src/template/solve.rs
+++ b/src/template/solve.rs
@@ -1,8 +1,10 @@
 mod part1;
 mod part2;
+mod parse;
 
 fn main() {
     let _input = include_str!("./input.txt");
+    let _structured_input = parse::parse(_input);
 
     println!("Part One");
     println!("Result: {}", part1::part1());