Added day 1 pt 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 = "aoc2021"
+version = "0.1.0"

Cargo.toml

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+[package]
+name = "aoc2021"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

src/main.rs

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+const INPUT: &'static str = include_str!("../inputs/day1.txt");
+
+fn depths() -> Vec<u64> {
+    INPUT
+        .lines()
+        .filter(|&x| !x.is_empty())
+        .map(|x| x.parse::<u64>().unwrap())
+        .collect()
+}
+
+fn main() {
+    let days = depths();
+    let mut count = 0;
+
+    for set in days.windows(2) {
+        if set[1] > set[0] {
+            count += 1;
+        }
+    }
+
+    println!("increased {} times", count);
+}