day02

day02/day02.go

@@ -0,0 +1,61 @@
+package day02
+
+import (
+	"aoc2015/aoclib"
+	"strconv"
+	"strings"
+)
+
+func Part1(puzzle aoclib.Puzzle) interface{} {
+	sqm := 0
+	for _, line := range puzzle.GetInputArray() {
+		dim := strings.Split(line, "x")
+		l, _ := strconv.Atoi(dim[0])
+		w, _ := strconv.Atoi(dim[1])
+		h, _ := strconv.Atoi(dim[2])
+
+		sqm += 2*l*w + 2*w*h + 2*h*l
+		if l <= w {
+			if w <= h {
+				sqm += l * w
+			} else {
+				sqm += l * h
+			}
+		} else {
+			if l <= h {
+				sqm += w * l
+			} else {
+				sqm += w * h
+			}
+		}
+	}
+
+	return sqm
+}
+
+func Part2(puzzle aoclib.Puzzle) interface{} {
+	length := 0
+	for _, line := range puzzle.GetInputArray() {
+		dim := strings.Split(line, "x")
+		l, _ := strconv.Atoi(dim[0])
+		w, _ := strconv.Atoi(dim[1])
+		h, _ := strconv.Atoi(dim[2])
+
+		length += l * w * h
+		if l <= w {
+			if w <= h {
+				length += 2*l + 2*w
+			} else {
+				length += 2*l + 2*h
+			}
+		} else {
+			if l <= h {
+				length += 2*w + 2*l
+			} else {
+				length += 2*w + 2*h
+			}
+		}
+	}
+
+	return length
+}

inputs/2_test

@@ -0,0 +1,2 @@
+2x3x4
+1x1x10

main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"aoc2015/aoclib"
 	"aoc2015/day01"
+	"aoc2015/day02"
 	"flag"
 	"fmt"
 	"os"
@@ -22,6 +23,9 @@ func initDayFunctions() {
 	dayFunctions[1] = make(map[int]func(puzzle aoclib.Puzzle) interface{})
 	dayFunctions[1][1] = day01.Part1
 	dayFunctions[1][2] = day01.Part2
+	dayFunctions[2] = make(map[int]func(puzzle aoclib.Puzzle) interface{})
+	dayFunctions[2][1] = day02.Part1
+	dayFunctions[2][2] = day02.Part2
 }
 
 func execute(thisDay int) {