From 743260c752a1c127ae4b779255bd255cc575dfd7 Mon Sep 17 00:00:00 2001
From: Ishan Jain <contact@ishanjain.me>
Date: Wed, 2 Dec 2020 08:24:05 +0530
Subject: [PATCH] Added Day 1 Part 2 and the smaller test input as well

---
 small.input |  6 ++++++
 src/main.rs | 16 ++++++++++++----
 2 files changed, 18 insertions(+), 4 deletions(-)
 create mode 100644 small.input

diff --git a/small.input b/small.input
new file mode 100644
index 0000000..e3fb011
--- /dev/null
+++ b/small.input
@@ -0,0 +1,6 @@
+1721
+979
+366
+299
+675
+1456
diff --git a/src/main.rs b/src/main.rs
index 2e7dccc..292c4f4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,12 +9,20 @@ fn main() {
         .split('\n')
         .filter(|x| !x.is_empty())
         .map(|x| x.parse::<u64>().unwrap())
+        .filter(|&x| x <= 2020)
         .collect();
 
-    for &num in numbers.iter() {
-        if numbers.contains(&(2020 - num)) {
-            println!("{}", num * (2020 - num));
-            break;
+    'outer: for (i, &num1) in numbers.iter().enumerate() {
+        let diff = 2020 - num1;
+
+        for (j, &num2) in numbers.iter().enumerate() {
+            if i == j {
+                continue;
+            }
+            if numbers.contains(&(diff - num2)) {
+                println!("{}", num1 * num2 * (diff - num2));
+                break 'outer;
+            }
         }
     }
 }