From 2e2bad9f57b3bfcd16d3a67ad0801c18229dc83d Mon Sep 17 00:00:00 2001
From: Meutel <meutel@meutel.net>
Date: Sat, 23 Dec 2017 16:45:04 +0100
Subject: [PATCH] Day 11: Hex

---
 11dec/main.go | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 11dec/main.go

diff --git a/11dec/main.go b/11dec/main.go
new file mode 100644
index 0000000..5cd1c2d
--- /dev/null
+++ b/11dec/main.go
@@ -0,0 +1,62 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+func main() {
+	var moves []string = parseInput()
+	fmt.Println(moves)
+	x, y, z := 0, 0, 0
+	for _, m := range moves {
+		x, y, z = move(x, y, z, m)
+		fmt.Println(x, y, z)
+	}
+	fmt.Println("Result:", max(max(abs(x), abs(y)), abs(z)))
+}
+
+func parseInput() []string {
+	sc := bufio.NewScanner(os.Stdin)
+	sc.Scan()
+	return strings.Split(sc.Text(), ",")
+}
+
+func move(x, y, z int, m string) (int, int, int) {
+	switch m {
+	case "n":
+		y++
+		z--
+	case "ne":
+		x++
+		z--
+	case "se":
+		x++
+		y--
+	case "s":
+		y--
+		z++
+	case "sw":
+		x--
+		z++
+	case "nw":
+		x--
+		y++
+	}
+	return x, y, z
+}
+
+func abs(n int) int {
+	if n > 0 {
+		return n
+	}
+	return -n
+}
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}