incomplete day17

day17/day.go

@@ -0,0 +1,40 @@
+package day17
+
+import (
+	"fmt"
+	"sort"
+	"tools"
+)
+
+func getCombinations(containers []int, sum int) (combinations [][]int) {
+	for i, c := range containers {
+		if c > sum {
+			break
+		} else if c == sum {
+			return [][]int{{c}}
+		} else if i == len(containers)-1 {
+			break
+		}
+		subCombinations := getCombinations(containers[i:], sum-c)
+		for _, v := range subCombinations {
+			subCombination := append([]int{c}, v...)
+			combinations = append(combinations, subCombination)
+		}
+	}
+	return combinations
+}
+
+func Part1(puzzle tools.AoCPuzzle) interface{} {
+	input := puzzle.GetInputArrayInt()
+	sort.Ints(input)
+
+	combos25 := getCombinations(input, 25)
+	fmt.Println(combos25)
+	//combos150 := getCombinations(input, 150)
+
+	return len(combos25)
+}
+
+func Part2(puzzle tools.AoCPuzzle) interface{} {
+	return 0
+}

inputs/17

@@ -0,0 +1,20 @@
+33
+14
+18
+20
+45
+35
+16
+35
+1
+13
+18
+13
+50
+44
+48
+6
+24
+41
+30
+42

inputs/17_test

@@ -0,0 +1,5 @@
+20
+15
+10
+5
+5

main.go

@@ -17,6 +17,7 @@ import (
 	"aoc2015/day14"
 	"aoc2015/day15"
 	"aoc2015/day16"
+	"aoc2015/day17"
 	"flag"
 	"fmt"
 	"os"
@@ -50,6 +51,7 @@ func initDayFunctions() {
 		14: {1: day14.Part1, 2: day14.Part2},
 		15: {1: day15.Part1, 2: day15.Part2},
 		16: {1: day16.Part1, 2: day16.Part2},
+		17: {1: day17.Part1, 2: day17.Part2},
 	}
 }