aoc2022 day 01

src/aoc2022/day01/mod.rs

@@ -0,0 +1,33 @@
+fn get_calories(input: &str) -> Vec<usize> {
+    let mut calories: Vec<usize> = Vec::new();
+
+    let mut sum = 0_usize;
+
+    for line in input.lines() {
+        match line.parse::<usize>() {
+            Ok(calorie) => sum += calorie,
+            Err(_) => {
+                calories.push(sum);
+                sum = 0;
+            }
+        }
+    }
+
+    calories.sort();
+    calories
+}
+
+pub fn task_one(input: &str) -> String {
+    let calories = get_calories(input);
+
+    calories.last().unwrap().to_string()
+}
+
+pub fn task_two(input: &str) -> String {
+    let calories = get_calories(input);
+
+    let count = calories.len();
+
+    let slice = calories.get(count - 3 ..).unwrap();
+    slice.into_iter().sum::<usize>().to_string()
+}

src/aoc2022/mod.rs

@@ -0,0 +1 @@
+pub mod day01;

src/main.rs

@@ -1,4 +1,5 @@
 mod aoc2021;
+mod aoc2022;
 
 use std::fs;
 
@@ -23,4 +24,7 @@ fn main() {
     let result_day04_task1 = aoc2021::day04::task_one(&input_day04);
     let result_day04_task2 = aoc2021::day04::task_two(&input_day04);
     println!("AOC2021 Day 04 \t Task 1: {},\t\tTask 2: {}", result_day04_task1, result_day04_task2);
+
+    let input_d1 = fs::read_to_string("src/aoc2022/day01/input.txt").expect("Error on reading file.");
+    println!("AOC2022 Day 01 \t Task 1: {},\t\tTask 2: {}", aoc2022::day01::task_one(&input_d1), aoc2022::day01::task_two(&input_d1));
 }