commit b60824718046e982491f557b6a1805fcd5855e2e
Author: Patrick Michl <huanzodev@gmail.com>
Date:   Sun Sep 12 16:41:05 2021 +0200

    initial commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..0114ab2
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+++ b/Cargo.lock
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+
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diff --git a/input/2020/day1.txt b/input/2020/day1.txt
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diff --git a/src/day1.rs b/src/day1.rs
new file mode 100644
index 0000000..4b2bd48
--- /dev/null
+++ b/src/day1.rs
@@ -0,0 +1,11 @@
+use itertools::Itertools;
+
+#[aoc_generator(day1, part1)]
+pub fn generator_p1(input: &str) -> Vec<u32> {
+    input.lines().map(|l| l.parse().unwrap()).collect()
+}
+
+#[aoc(day1, part1)]
+pub fn solve_p1(input: &[u32]) -> u32 {
+    input.iter().permutations(2).find(|v| v[0] + v[1] == 2020).unwrap().iter().map(|a| a.clone()).product()
+}
diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..ec8705f
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,7 @@
+#[macro_use]
+extern crate aoc_runner_derive;
+extern crate aoc_runner;
+
+pub mod day1;
+
+aoc_lib!{ year = 2020 }
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}