Day 02 boilerplate

Cargo.toml

@@ -10,9 +10,9 @@ chrono = "0.4.23"
 regex = "1.7.0"
 
 [features]
-default = ["a", "b", "today"]
-a = []
-b = []
+default = ["part1", "part2", "today"]
+part1 = []
+part2 = []
 today = []
 01 = []
 02 = []

src/day01/mod.rs

@@ -2,4 +2,29 @@ use crate::read;
 
 pub fn run() {
     let input = read("01");
+    let elves = vec![0];
+
+    let mut elves = input.lines().fold(elves, |mut acc, x|{
+        if x.is_empty() {
+            acc.push(0);
+        } else {
+            let num: i32 = x.parse().unwrap();
+            *acc.last_mut().unwrap() += num;
+        }
+        acc
+    });
+    elves.sort();
+    elves.reverse();
+
+    #[cfg(feature="part1")]
+    {
+        let a = elves.first().unwrap();
+        eprintln!("Part 01: {}", *a);
+    }
+
+    #[cfg(feature="part2")]
+    {
+        let b = elves[..3].iter().sum::<i32>();
+        eprintln!("Part 02: {}", b);
+    }
 }

src/day02/mod.rs

@@ -0,0 +1,20 @@
+use crate::read;
+
+pub fn run() {
+    let input = read("02");
+    let lines = input.lines();
+
+
+
+    #[cfg(feature="part1")]
+    {
+        let a = "TODO";
+        eprintln!("Day 2, Part 01: {}", a);
+    }
+
+    #[cfg(feature="part2")]
+    {
+        let b = "TODO";
+        eprintln!("Day 2, Part 02: {}", b);
+    }
+}

src/main.rs

@@ -2,6 +2,7 @@ use std::path::Path;
 use std::time::Instant;
 use chrono::prelude::*;
 mod day01;
+mod day02;
 
 fn main() {
     let today = Local::now().day();
@@ -10,8 +11,7 @@ fn main() {
         day01::run();
     }
     if cfg!(feature ="day02") || (cfg!(feature ="today") && today == 2) {
-        todo!()
-        //day02::run();
+        day02::run();
     }
     println!("Finished, time taken: {:?}", now.elapsed())
 }