From 850a13b6fc03b6e7fd169d423b6c51cc59218f91 Mon Sep 17 00:00:00 2001
From: Brandon Scott <xeons@users.noreply.github.com>
Date: Fri, 2 Dec 2022 14:19:49 -0600
Subject: [PATCH] Day 1 Solution

---
 rust/.gitignore              |   14 +
 rust/Cargo.toml              |    8 +
 rust/make.sh                 |    8 +
 rust/resources/day1input.txt | 2242 ++++++++++++++++++++++++++++++++++
 rust/src/day1.rs             |   36 +
 rust/src/main.rs             |    5 +
 6 files changed, 2313 insertions(+)
 create mode 100644 rust/.gitignore
 create mode 100644 rust/Cargo.toml
 create mode 100755 rust/make.sh
 create mode 100644 rust/resources/day1input.txt
 create mode 100644 rust/src/day1.rs
 create mode 100644 rust/src/main.rs

diff --git a/rust/.gitignore b/rust/.gitignore
new file mode 100644
index 0000000..ada8be9
--- /dev/null
+++ b/rust/.gitignore
@@ -0,0 +1,14 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug/
+target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
\ No newline at end of file
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
new file mode 100644
index 0000000..c1cd145
--- /dev/null
+++ b/rust/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "aoc2022"
+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/rust/make.sh b/rust/make.sh
new file mode 100755
index 0000000..23c6c6a
--- /dev/null
+++ b/rust/make.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+
+DIR="$(dirname "$0")"
+
+if cargo "$@"; then
+    [ -d "$DIR/target/debug" ] && cp -r "$DIR/resources" "$DIR/target/debug/resources"
+    [ -d "$DIR/target/release" ] && cp -r "$DIR/resources" "$DIR/target/release/resources"
+fi
diff --git a/rust/resources/day1input.txt b/rust/resources/day1input.txt
new file mode 100644
index 0000000..3b5b71e
--- /dev/null
+++ b/rust/resources/day1input.txt
@@ -0,0 +1,2242 @@
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diff --git a/rust/src/day1.rs b/rust/src/day1.rs
new file mode 100644
index 0000000..c04f69f
--- /dev/null
+++ b/rust/src/day1.rs
@@ -0,0 +1,36 @@
+use std::fs::File;
+use std::io::BufReader;
+use std::io::BufRead;
+
+pub fn run() {
+    let file = File::open("resources/day1input.txt").expect("Input file not found.");
+    let reader = BufReader::new(file);
+    let mut calorie_totals: Vec<i64> = Vec::new();
+    let mut current_elf_calories = 0;
+
+    for line in reader.lines() {
+        let calories = line.unwrap().parse::<i64>().unwrap_or(0);
+        println!("Input calories: {:?}", calories);
+        if calories == 0 {
+            println!("Adding to current elf total: {:?}", current_elf_calories);
+            calorie_totals.push(current_elf_calories);
+            current_elf_calories = 0;
+        } else {
+            current_elf_calories += calories;
+        }
+    }
+
+    if current_elf_calories > 0 {
+        println!("Adding to current elf total: {:?}", current_elf_calories);
+        calorie_totals.push(current_elf_calories);
+        current_elf_calories = 0;
+    }
+
+    calorie_totals.sort();
+    calorie_totals.reverse();
+
+    assert!(calorie_totals.len() >= 3);
+    println!("Day 1 Part A Answer: {}", calorie_totals[0]);
+    println!("Day 1 Part B Answer: {}", calorie_totals[0] + calorie_totals[1] + calorie_totals[2]);
+
+}
diff --git a/rust/src/main.rs b/rust/src/main.rs
new file mode 100644
index 0000000..8232b91
--- /dev/null
+++ b/rust/src/main.rs
@@ -0,0 +1,5 @@
+mod day1;
+
+fn main() {
+    day1::run();
+}