From 0000002038fefac5918c9aa7113e4aaa3a5ff4b6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matej=20Jane=C5=BEi=C4=8D?= <janezic.mj@gmail.com>
Date: Mon, 28 Nov 2022 23:28:19 +0100
Subject: [PATCH] solution: day2

---
 src/bin/02.rs | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/bin/02.rs

diff --git a/src/bin/02.rs b/src/bin/02.rs
new file mode 100644
index 000000000..610099e
--- /dev/null
+++ b/src/bin/02.rs
@@ -0,0 +1,55 @@
+pub fn part_one(input: &str) -> Option<u32> {
+    let present_dimensions: Vec<Vec<u32>> = input
+        .trim()
+        .split('\n')
+        .map(|x| x.split('x').map(|y| y.parse::<u32>().unwrap()).collect())
+        .collect();
+
+    let mut wrapping = 0;
+    for present in present_dimensions.iter() {
+        if let [x, y, z] = &present[..] {
+            wrapping +=
+                2 * (x * y + y * z + z * x) + vec![x * y, y * z, z * x].iter().min().unwrap();
+        }
+    }
+    Some(wrapping)
+}
+pub fn part_two(input: &str) -> Option<u32> {
+    let present_dimensions: Vec<Vec<u32>> = input
+        .trim()
+        .split('\n')
+        .map(|x| x.split('x').map(|y| y.parse::<u32>().unwrap()).collect())
+        .collect();
+
+    let mut wrapping = 0;
+    for present in present_dimensions.iter() {
+        if let [x, y, z] = &present[..] {
+            // ribbon
+            wrapping += x * y * z;
+            // ribbon base
+            wrapping += 2 * (x + y + z - present.iter().max().unwrap());
+        }
+    }
+    Some(wrapping)
+}
+fn main() {
+    let input = &aoc::read_file("inputs", 2);
+    aoc::solve!(1, part_one, input);
+    aoc::solve!(2, part_two, input);
+}
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn test_part_one() {
+        // let input = aoc::read_file("test_inputs", 2);
+        let input = "2x3x4";
+        assert_eq!(part_one(&input), Some(58));
+    }
+    #[test]
+    fn test_part_two() {
+        // let input = aoc::read_file("test_inputs", 2);
+        let input = "2x3x4";
+        assert_eq!(part_two(&input), Some(34));
+    }
+}