From 7b19a53f660a8529215d9418df8e698fc021e8aa Mon Sep 17 00:00:00 2001
From: Kalle Struik <kalle@kallestruik.nl>
Date: Thu, 1 Dec 2022 11:58:44 +0100
Subject: [PATCH] Day 1

---
 input/01.txt    | 2249 +++++++++++++++++++++++++++++++++++++++++++++++
 src/bin/01_1.rs |   30 +
 src/bin/01_2.rs |   35 +
 3 files changed, 2314 insertions(+)
 create mode 100644 input/01.txt
 create mode 100644 src/bin/01_1.rs
 create mode 100644 src/bin/01_2.rs

diff --git a/input/01.txt b/input/01.txt
new file mode 100644
index 0000000..113b5ca
--- /dev/null
+++ b/input/01.txt
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diff --git a/src/bin/01_1.rs b/src/bin/01_1.rs
new file mode 100644
index 0000000..c2e0d2e
--- /dev/null
+++ b/src/bin/01_1.rs
@@ -0,0 +1,30 @@
+#![feature(slice_group_by)]
+
+use itertools::Itertools;
+use itertools::max;
+use std::fs;
+use anyhow::Result;
+
+
+fn main() -> Result<()> {
+    let input = fs::read_to_string("input/01.txt")?;
+
+    let groups = input
+        .split("\n").collect::<Vec<&str>>()
+        .into_iter()
+        .group_by(|ell| *ell != "");
+
+    let elves = groups
+        .into_iter()
+        .filter(|(key, _)| *key)
+        .map(|(_, elf)| elf
+            .into_iter()
+            .map(|val| val.parse::<i32>().unwrap())
+            .fold(0, |acc, val| acc + val)
+        );
+
+    let highest = max(elves);
+    println!("{:?}", highest);
+
+    return Ok(());
+}
diff --git a/src/bin/01_2.rs b/src/bin/01_2.rs
new file mode 100644
index 0000000..d1158de
--- /dev/null
+++ b/src/bin/01_2.rs
@@ -0,0 +1,35 @@
+#![feature(slice_group_by)]
+
+use itertools::Itertools;
+use itertools::sorted;
+use std::fs;
+use anyhow::Result;
+
+
+fn main() -> Result<()> {
+    let input = fs::read_to_string("input/01.txt")?;
+
+    let groups = input
+        .split("\n").collect::<Vec<&str>>()
+        .into_iter()
+        .group_by(|ell| *ell != "");
+
+    let elves: Vec<i32> = groups
+        .into_iter()
+        .filter(|(key, _)| *key)
+        .map(|(_, elf)| elf
+            .into_iter()
+            .map(|val| val.parse::<i32>().unwrap())
+            .sum()
+        ).collect();
+
+    let highest = sorted(elves);
+    let sum: i32 = highest
+        .into_iter()
+        .rev()
+        .take(3)
+        .sum();
+    println!("{:?}", sum);
+
+    return Ok(());
+}