From 1531239f2005dfd8bc8536579eae6ae8baf790c1 Mon Sep 17 00:00:00 2001
From: nihilazo <nico@itwont.work>
Date: Thu, 1 Dec 2022 15:13:03 +0000
Subject: [PATCH] day 1 solved

---
 src/bin/01.rs       | 63 +++++++++++++++++++++++++++++++++++++++++++++
 src/examples/01.txt | 14 ++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 src/bin/01.rs
 create mode 100644 src/examples/01.txt

diff --git a/src/bin/01.rs b/src/bin/01.rs
new file mode 100644
index 0000000..2c13fe5
--- /dev/null
+++ b/src/bin/01.rs
@@ -0,0 +1,63 @@
+pub fn part_one(input: &str) -> Option<u32> {
+    let inlines = input.split("\n");
+    let mut count: u32 = 0;
+    let mut elves: Vec<u32> = vec![];
+    for l in inlines {
+        match l {
+        "" => { elves.push(count); count = 0},
+        _ => { count += l.parse::<u32>().unwrap() }
+        }
+    }
+
+    let mut largest = 0;
+
+    for e in elves {
+        if e > largest {
+            largest = e;
+        }
+    }
+
+    Some(largest)
+}
+
+pub fn part_two(input: &str) -> Option<u32> {
+    let inlines = input.split("\n");
+    let mut count: u32 = 0;
+    let mut elves: Vec<u32> = vec![];
+    for l in inlines {
+        match l {
+        "" => { elves.push(count); count = 0},
+        _ => { count += l.parse::<u32>().unwrap() }
+        }
+    }
+
+    elves.sort();
+    elves.reverse();
+    elves.truncate(3);
+
+    Some(elves.iter().sum::<u32>())
+
+}
+
+fn main() {
+    let input = &advent_of_code::read_file("inputs", 1);
+    advent_of_code::solve!(1, part_one, input);
+    advent_of_code::solve!(2, part_two, input);
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_part_one() {
+        let input = advent_of_code::read_file("examples", 1);
+        assert_eq!(part_one(&input), Some(24000));
+    }
+
+    #[test]
+    fn test_part_two() {
+        let input = advent_of_code::read_file("examples", 1);
+        assert_eq!(part_two(&input), None);
+    }
+}
diff --git a/src/examples/01.txt b/src/examples/01.txt
new file mode 100644
index 0000000..444e241
--- /dev/null
+++ b/src/examples/01.txt
@@ -0,0 +1,14 @@
+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000
\ No newline at end of file