From d7ff9586efcfeba80aae618d168bdc20016cc8f7 Mon Sep 17 00:00:00 2001
From: Meutel <meutel@meutel.net>
Date: Fri, 8 Dec 2017 10:16:31 +0100
Subject: [PATCH] Day 5: maze => 351282

---
 05dec/input_test |  5 +++++
 05dec/main.go    | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 05dec/input_test
 create mode 100644 05dec/main.go

diff --git a/05dec/input_test b/05dec/input_test
new file mode 100644
index 0000000..7a76cf7
--- /dev/null
+++ b/05dec/input_test
@@ -0,0 +1,5 @@
+0
+3
+0
+1
+-3
diff --git a/05dec/main.go b/05dec/main.go
new file mode 100644
index 0000000..89d28f0
--- /dev/null
+++ b/05dec/main.go
@@ -0,0 +1,48 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+)
+
+func main() {
+	moves := parseInput()
+	for _, m := range moves {
+		fmt.Print(*m, " ")
+	}
+	fmt.Println()
+	fmt.Println(maze(moves, 0, 0))
+}
+
+func parseInput() []*int {
+	var in string
+	moves := []*int{}
+	sc := bufio.NewScanner(os.Stdin)
+	for sc.Scan() {
+		i, err := strconv.Atoi(sc.Text())
+		//fmt.Println(i)
+		if err != nil {
+			log.Fatalln("Invalid input", in)
+		}
+		moves = append(moves, &i)
+	}
+	return moves
+}
+
+func maze(moves []*int, pos int, incr int) int {
+	//fmt.Println("Taille", len(moves))
+	//fmt.Println("pos", pos)
+	offset := *moves[pos]
+	//fmt.Println("offset", offset)
+	newpos := pos + offset
+	if newpos >= len(moves) {
+		return incr + 1
+	}
+	offset++
+	moves[pos] = &offset
+	//fmt.Println("Newoffset at ", pos, *moves[pos])
+	return maze(moves, newpos, incr+1)
+}