From d394c8697f020f0b90f6a0d0fc53934ae921a1a8 Mon Sep 17 00:00:00 2001
From: Hubert Van De Walle <hubv@protonmail.com>
Date: Sat, 5 Dec 2020 08:18:25 +0100
Subject: [PATCH] Sort once

---
 days/src/main/kotlin/Day05.kt | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/days/src/main/kotlin/Day05.kt b/days/src/main/kotlin/Day05.kt
index 6f24c05..8a1d794 100644
--- a/days/src/main/kotlin/Day05.kt
+++ b/days/src/main/kotlin/Day05.kt
@@ -14,12 +14,11 @@ class Day05(@Lines val input: Input<List<String>>) {
             .replace("L", "0")
             .replace("R", "1")
             .toInt(2)
-    }
+    }.sorted()
 
-    fun part1() = ids.maxOrNull()
+    fun part1() = ids.last()
 
-    fun part2() = ids.sorted()
-        .windowed(size = 2, step = 1)
+    fun part2() = ids.windowed(size = 2, step = 1)
         .find { (a, b) -> b - a > 1 }!!
         .first() + 1
 }