From e5fa6d3f7ce5bb4cb69b33629f356c6e18aa55b4 Mon Sep 17 00:00:00 2001
From: Christian Nachtigall <christian@nachtigall.dev>
Date: Wed, 6 Dec 2023 08:15:43 +0100
Subject: [PATCH] day_03 init

---
 day_03/Cargo.toml  |  8 ++++++++
 day_03/input       |  0
 day_03/src/main.rs | 34 ++++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 day_03/Cargo.toml
 create mode 100644 day_03/input
 create mode 100644 day_03/src/main.rs

diff --git a/day_03/Cargo.toml b/day_03/Cargo.toml
new file mode 100644
index 0000000..08ffcb3
--- /dev/null
+++ b/day_03/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "day_03"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/day_03/input b/day_03/input
new file mode 100644
index 0000000..e69de29
diff --git a/day_03/src/main.rs b/day_03/src/main.rs
new file mode 100644
index 0000000..9f91d18
--- /dev/null
+++ b/day_03/src/main.rs
@@ -0,0 +1,34 @@
+use std::fs::File;
+use std::io::{self, BufRead};
+use std::path::Path;
+
+fn main() {
+    // File input must exist in the current path
+    if let Ok(lines) = read_lines("./input") {
+        let mut total_part_1: u64 = 0;
+        let mut total_part_2: u64 = 0;
+
+        // Consumes the iterator, returns an (Optional) String
+        for line in lines {
+            if let Ok(mut l) = line {
+                // Part 1
+
+                // Part 2
+
+            }
+        }
+
+        println!("Total of part 1 is {}", total_part_1);
+        println!("Total of part 2 is {}", total_part_2);
+    }
+}
+
+// The output is wrapped in a Result to allow matching on errors
+// Returns an Iterator to the Reader of the lines of the file.
+fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
+where
+    P: AsRef<Path>,
+{
+    let file = File::open(filename)?;
+    Ok(io::BufReader::new(file).lines())
+}