Added day 1 part 1

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "aoc2022"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "aoc2022"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

inputs/sample.txt

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+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000
+
+

src/main.rs

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+#![feature(test)]
+extern crate test;
+
+const INPUTS: [&'static str; 2] = [
+    include_str!("../inputs/sample.txt"),
+    include_str!("../inputs/input.txt"),
+];
+
+fn parse(input: &'static str) -> Vec<Vec<i64>> {
+    input
+        .trim()
+        .split("\n\n")
+        .map(|set| {
+            set.split('\n')
+                .map(|c| c.trim())
+                .map(|c| c.parse::<i64>().unwrap())
+                .collect()
+        })
+        .collect()
+}
+
+fn main() {
+    for input in INPUTS.iter() {
+        let output = parse(input);
+
+        let max = output
+            .into_iter()
+            .map(|c| c.into_iter().sum::<i64>())
+            .max()
+            .unwrap();
+
+        println!("{}", max);
+    }
+}