4 files changed, 222 insertions(+), 1 deletions(-)

A data/day01.dat
A src/days.rs
A src/days/day01.rs
M src/main.rs

@@ 0,0 1,200 @@
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@@ 0,0 1,1 @@
+pub mod day01;

@@ 0,0 1,18 @@
+use std::fs;
+
+fn calc_solution1(input: &Vec<i32>) -> i32 {
+    for i in 0..input.len() {
+        for j in (i + 1)..input.len() {
+            if (input[i] + input[j]) == 2020 {
+                return input[i] * input[j];
+            }
+        }
+    }
+    panic!("No solution");
+}
+
+pub fn get_solution() {
+    let contents = fs::read_to_string("data/day01.dat").expect("Could not read data");
+    let input: Vec<i32> = contents.lines().flat_map(str::parse).collect();
+    println!("Day 1, part 1: {}", calc_solution1(&input));
+}

@@ 1,3 1,5 @@
+mod days;
+
 fn main() {
-    println!("Hello, world!");
+    days::day01::get_solution();
 }