add rust

.gitignore

@@ -2,3 +2,7 @@
 node_modules
 *.txt
 .env*
+
+
+# Added by cargo
+/target

2022/01/rust/main.rs

@@ -0,0 +1,10 @@
+fn main() {
+    // Part A
+    let result: u32 = include_str!("../input.txt")
+        .trim()
+        .split("\n\n")
+        .map(|x| x.lines().map(|x| x.parse::<u32>().unwrap()).sum())
+        .max()
+        .unwrap();
+    println!("A: {}", result);
+}

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "advent-of-code"
+version = "0.1.0"

Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "advent-of-code"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+
+[[bin]]
+name = "2022-01"
+path = "./2022/01/rust/main.rs"