From f10f5d05d2cbb744cf9f058b7c8d4c06da91b306 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorben=20G=C3=BCnther?= <admin@xenrox.net>
Date: Wed, 7 Apr 2021 15:29:32 +0200
Subject: [PATCH] Solve day 1 part 2

---
 src/days/day01.rs | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/days/day01.rs b/src/days/day01.rs
index b323016..ea28107 100644
--- a/src/days/day01.rs
+++ b/src/days/day01.rs
@@ -11,8 +11,25 @@ fn calc_solution1(input: &Vec<i32>) -> i32 {
     panic!("No solution");
 }
 
+fn calc_solution2(input: &Vec<i32>) -> i32 {
+    for i in 0..input.len() {
+        for j in (i + 1)..input.len() {
+            for k in (j + 1)..input.len() {
+                if (input[i] + input[j] + input[k]) == 2020 {
+                    return input[i] * input[j] * input[k];
+                }
+            }
+        }
+    }
+    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));
+    println!(
+        "Day 1, part 1: {}, part 2: {}",
+        calc_solution1(&input),
+        calc_solution2(&input)
+    );
 }
-- 
2.44.0