From a7e0e74feeda2aa4c1873314b28fae2bff6aace2 Mon Sep 17 00:00:00 2001
From: Araozu <faraoz@unsa.edu.pe>
Date: Tue, 31 Oct 2023 21:14:53 -0500
Subject: [PATCH] day 1 part 2

---
 src/main/scala/Day01.scala    | 29 +++++++++++++++++++++++++++--
 src/main/scala/Main.scala     |  2 ++
 src/main/scala/Solution.scala |  7 +++++++
 3 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/src/main/scala/Day01.scala b/src/main/scala/Day01.scala
index b804f1c..dd26e44 100644
--- a/src/main/scala/Day01.scala
+++ b/src/main/scala/Day01.scala
@@ -22,7 +22,32 @@ object Day01 extends Solution:
                     current_sum = 0
             
 
-        max_calories_amount.toString()
+        "part 1: " + max_calories_amount.toString()
 
     override def part_02() =
-        "part 2 :O"
+        val file = this.read_input("01") match
+            case Success(f) => f
+            case Failure(ex) =>
+                return "Error opening file: " + ex.getMessage()
+
+        var (max1, max2, max3) = (0, 0, 0)
+        var current_sum = 0
+
+        for line <- file.getLines() do
+            Try(line.toInt).toOption match
+                case Some(value) => current_sum += value
+                case None =>
+                    if current_sum > max1 then
+                        max3 = max2
+                        max2 = max1
+                        max1 = current_sum
+                    else if current_sum > max2 then
+                        max3 = max2
+                        max2 = current_sum
+                    else if current_sum > max3 then 
+                        max3 = current_sum
+
+                    current_sum = 0
+
+        "part 2: " + (max1 + max2 + max3).toString()
+
diff --git a/src/main/scala/Main.scala b/src/main/scala/Main.scala
index 0cdb6da..c9a7c82 100644
--- a/src/main/scala/Main.scala
+++ b/src/main/scala/Main.scala
@@ -5,4 +5,6 @@ import scala.util.Random
 @main def hello: Unit =
     println("Advent of code 2022 with Scala")
     println(Day01.part_01())
+    println(Day01.part_02())
+
 
diff --git a/src/main/scala/Solution.scala b/src/main/scala/Solution.scala
index 846ea84..67ca63b 100644
--- a/src/main/scala/Solution.scala
+++ b/src/main/scala/Solution.scala
@@ -18,4 +18,11 @@ trait Solution:
         catch
             case ex: java.io.FileNotFoundException =>
                 Failure(ex)
+    
+    def read_test_input(day: String): Try[BufferedSource] =
+        try
+            Success(Source.fromFile(s"./inputs/day$day.test.txt"))
+        catch
+            case ex: java.io.FileNotFoundException =>
+                Failure(ex)