2022 day6/rust: add solution

2022/day6/rust/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "rust_2022_06"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+aoc = { path = "../../../common/rust" }

2022/day6/rust/src/main.rs

@@ -0,0 +1,29 @@
+#![warn(clippy::pedantic)]
+
+use std::{
+    collections::HashSet,
+    io::{stdin, Read},
+};
+
+use aoc::*;
+
+fn main() {
+    let mut data = String::new();
+    stdin().read_to_string(&mut data).unwrap();
+
+    let i = data
+        .as_bytes()
+        .windows(4)
+        .position(|cs| HashSet::<u8>::from_iter(cs.into_iter().copied()).len() == 4)
+        .unwrap();
+
+    println!("{:?}", i + 4);
+
+    let i = data
+        .as_bytes()
+        .windows(14)
+        .position(|cs| HashSet::<u8>::from_iter(cs.into_iter().copied()).len() == 14)
+        .unwrap();
+
+    println!("{:?}", i + 14);
+}

Cargo.lock

@@ -503,6 +503,13 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "rust_2022_06"
+version = "0.1.0"
+dependencies = [
+ "aoc",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.11"

Cargo.toml

@@ -15,4 +15,5 @@ members = [
 	"2022/day3/rust",
 	"2022/day4/rust",
 	"2022/day5/rust",
+	"2022/day6/rust",
 ]