From 20051e984ab3151b59b9524817680edd092aa724 Mon Sep 17 00:00:00 2001
From: Brian Buller <brbuller@gmail.com>
Date: Wed, 5 Dec 2018 09:39:41 -0600
Subject: [PATCH] More optimization

---
 2018/day05/day05.go | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/2018/day05/day05.go b/2018/day05/day05.go
index 33f0268..9fa52c4 100644
--- a/2018/day05/day05.go
+++ b/2018/day05/day05.go
@@ -5,7 +5,6 @@ import (
 	"bytes"
 	"fmt"
 	"log"
-	"math"
 	"os"
 	"strconv"
 )
@@ -74,7 +73,7 @@ func countByte(h []byte, n byte) int {
 func react(v []byte) []byte {
 	var ret []byte
 	for i := 0; i < len(v); i++ {
-		if i < len(v)-1 && Abs(v[i], v[i+1]) == 32 {
+		if i < len(v)-1 && sameDecase(v[i], v[i+1]) {
 			i++
 			continue
 		}
@@ -101,6 +100,6 @@ func Atoi(i string) int {
 	return ret
 }
 
-func Abs(val1, val2 byte) int {
-	return int(math.Abs(float64(val1) - float64(val2)))
+func sameDecase(val1, val2 byte) bool {
+	return val1+32 == val2 || val2+32 == val1
 }