Day 14 WIP

days/14.go

@@ -0,0 +1,149 @@
+package days
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	u "parnic.com/aoc2019/utilities"
+)
+
+type reaction struct {
+	inputs map[string]int
+	output u.Pair[string, int]
+}
+
+type Day14 struct {
+	reactions []reaction
+	leftovers map[string]int
+}
+
+func (d *Day14) Parse() {
+	d.leftovers = make(map[string]int)
+
+	lines := u.GetStringLines("14s2")
+	d.reactions = make([]reaction, len(lines))
+	for i, line := range lines {
+		sides := strings.Split(line, " => ")
+		inputs := strings.Split(sides[0], ", ")
+		output := sides[1]
+
+		outPair := strings.Split(output, " ")
+		outAmt, _ := strconv.Atoi(outPair[0])
+		d.reactions[i].output = u.Pair[string, int]{First: outPair[1], Second: outAmt}
+		d.reactions[i].inputs = make(map[string]int)
+		for _, input := range inputs {
+			pair := strings.Split(input, " ")
+			d.reactions[i].inputs[pair[1]], _ = strconv.Atoi(pair[0])
+		}
+	}
+}
+
+func (d Day14) getReactionProducing(chem string) *reaction {
+	for _, reaction := range d.reactions {
+		if reaction.output.First == chem {
+			return &reaction
+		}
+	}
+
+	return nil
+}
+
+func (d Day14) Num() int {
+	return 14
+}
+
+func (d Day14) getOreRequiredFor(chem string, amt int) (int, int) {
+	requiredOre := 0
+	for _, reaction := range d.reactions {
+		if reaction.output.First == chem {
+			// if oreAmt, exists := reaction.inputs["ORE"]; exists && len(reaction.inputs) == 1 {
+			// 	if d.leftovers[chem] >= amt {
+			// 		d.leftovers[chem] -= amt
+			// 		return 0, amt
+			// 	}
+
+			// 	produced := reaction.output.Second
+			// 	for produced < amt {
+			// 		requiredOre += oreAmt
+			// 		produced += reaction.output.Second
+			// 	}
+			// 	requiredOre += oreAmt
+			// 	if produced > amt {
+			// 		d.leftovers[chem] += produced - amt
+			// 	}
+			// 	return requiredOre, produced
+			// } else {
+			for inChem, inAmt := range reaction.inputs {
+				produced := 0
+				if d.leftovers[inChem] >= inAmt {
+					d.leftovers[inChem] -= inAmt
+					produced = inAmt
+				} else {
+					for produced < inAmt {
+						madeOre, madeChem := d.getOreRequiredFor(inChem, inAmt)
+						produced += madeChem
+						requiredOre += madeOre
+					}
+					if produced > inAmt {
+						d.leftovers[inChem] += produced - inAmt
+					}
+				}
+			}
+			// }
+		}
+	}
+
+	return requiredOre, 0
+}
+
+func (d *Day14) Part1() string {
+	fuelReaction := d.getReactionProducing("FUEL")
+	if fuelReaction == nil {
+		panic("")
+	}
+
+	neededMaterial := map[string]int{
+		"FUEL": 1,
+	}
+	var recurse func(neededMaterial map[string]int) map[string]int
+	recurse = func(neededMaterial map[string]int) map[string]int {
+		neededInputs := make(map[string]int)
+		for chem, amt := range neededMaterial {
+			reaction := d.getReactionProducing(chem)
+			if reaction == nil {
+				continue
+			}
+			produced := reaction.output.Second
+			reactionsNeeded := 1
+			for produced < amt {
+				produced += reaction.output.Second
+				reactionsNeeded++
+			}
+			for inChem, inAmt := range reaction.inputs {
+				neededInputs[inChem] += inAmt * reactionsNeeded
+			}
+		}
+		if len(neededInputs) > 0 {
+			recursed := recurse(neededInputs)
+			for k, v := range recursed {
+				neededInputs[k] += v
+			}
+		}
+		return neededInputs
+	}
+	recursed := recurse(neededMaterial)
+	fmt.Println(len(recursed))
+
+	ore := 0
+	for inChem, inAmt := range fuelReaction.inputs {
+		requiredOre, _ := d.getOreRequiredFor(inChem, inAmt)
+		ore += requiredOre
+	}
+
+	return fmt.Sprintf("%s%d%s", u.TextBold, ore, u.TextReset)
+}
+
+func (d *Day14) Part2() string {
+	return ""
+}

inputs/14p.txt

@@ -0,0 +1,60 @@
+11 RVCS => 8 CBMDT
+29 QXPB, 8 QRGRH => 8 LGMKD
+3 VPRVD => 6 PMFZG
+1 CNWNQ, 11 MJVXS => 6 SPLM
+13 SPDRZ, 13 PMFZG => 2 BLFM
+8 QWPFN => 7 LWVB
+1 SPLM => 8 TKWQ
+2 QRGRH, 6 CNWNQ => 7 DTZW
+2 DMLT, 1 SPLM, 1 TMDK => 9 NKNS
+1 MJVXS, 1 HLBV => 7 PQCQH
+1 JZHZP, 9 LWVB => 7 MJSCQ
+29 DGFR => 7 QRGRH
+14 XFLKQ, 2 NKNS, 4 KMNJF, 3 MLZGQ, 7 TKWQ, 24 WTDW, 11 CBMDT => 4 GJKX
+4 TKWQ, 1 WLCFR => 4 PDKGT
+2 NKNS => 4 GDKL
+4 WRZST => 9 XFLKQ
+19 DGFR => 4 VPRVD
+10 MJSCQ, 4 QWPFN, 4 QXPB => 2 MLZGQ
+1 JZHZP => 7 QWPFN
+1 XFLKQ => 9 FQGVL
+3 GQGXC => 9 VHGP
+3 NQZTV, 1 JZHZP => 2 NVZWL
+38 WLCFR, 15 GJKX, 44 LGMKD, 2 CBVXG, 2 GDKL, 77 FQGVL, 10 MKRCZ, 29 WJQD, 33 BWXGC, 19 PQCQH, 24 BKXD => 1 FUEL
+102 ORE => 5 DGFR
+17 NWKLB, 1 SBPLK => 5 HRQM
+3 BWXGC => 8 TQDP
+1 TQDP => 2 PSZDZ
+2 MJVXS => 9 WNXG
+2 NBTW, 1 HRQM => 2 SVHBH
+8 CNWNQ, 1 DTZW => 4 RVCS
+4 VHGP, 20 WNXG, 2 SVHBH => 3 SPDRZ
+110 ORE => 5 TXMC
+10 QRGRH => 5 NWKLB
+1 SBPLK => 3 MJVXS
+9 DGFR => 5 RFSRL
+5 LBTV => 3 DMLT
+1 NWKLB, 1 KMNJF, 1 HDQXB, 6 LBTV, 2 PSZDZ, 34 PMFZG, 2 SVHBH => 2 WJQD
+1 RVCS => 5 MKRCZ
+14 NQZTV, 3 FPLT, 1 SJMS => 2 GQGXC
+18 RFSRL, 13 VHGP, 23 NBTW => 5 WTDW
+1 VHGP, 6 TKWQ => 7 QXPB
+1 JZHZP, 1 CNWNQ => 5 KMNJF
+109 ORE => 9 BWXGC
+2 CNWNQ, 1 PDKGT, 2 KMNJF => 5 HDQXB
+1 PDKGT, 18 WRZST, 9 MJSCQ, 3 VHGP, 1 BLFM, 1 LGMKD, 7 WLCFR => 2 BKXD
+11 MLJK => 6 FPLT
+8 DGFR, 2 TXMC, 3 WJRC => 9 SJMS
+2 SBPLK => 1 LBTV
+22 QWPFN => 4 WRZST
+5 WRZST, 22 WNXG, 1 VHGP => 7 NBTW
+7 RVCS => 9 TMDK
+1 DGFR, 14 TXMC => 5 JZHZP
+2 JZHZP => 3 SBPLK
+19 PDKGT => 8 HLBV
+195 ORE => 6 WJRC
+6 GQGXC => 8 CNWNQ
+1 NVZWL, 4 GQGXC => 2 CBVXG
+1 NVZWL, 1 KMNJF => 8 WLCFR
+153 ORE => 4 MLJK
+1 BWXGC => 6 NQZTV

inputs/14s1.txt

@@ -0,0 +1,6 @@
+10 ORE => 10 A
+1 ORE => 1 B
+7 A, 1 B => 1 C
+7 A, 1 C => 1 D
+7 A, 1 D => 1 E
+7 A, 1 E => 1 FUEL

inputs/14s2.txt

@@ -0,0 +1,7 @@
+9 ORE => 2 A
+8 ORE => 3 B
+7 ORE => 5 C
+3 A, 4 B => 1 AB
+5 B, 7 C => 1 BC
+4 C, 1 A => 1 CA
+2 AB, 3 BC, 4 CA => 1 FUEL

inputs/14s3.txt

@@ -0,0 +1,9 @@
+157 ORE => 5 NZVS
+165 ORE => 6 DCFZ
+44 XJWVT, 5 KHKGT, 1 QDVJ, 29 NZVS, 9 GPVTF, 48 HKGWZ => 1 FUEL
+12 HKGWZ, 1 GPVTF, 8 PSHF => 9 QDVJ
+179 ORE => 7 PSHF
+177 ORE => 5 HKGWZ
+7 DCFZ, 7 PSHF => 2 XJWVT
+165 ORE => 2 GPVTF
+3 DCFZ, 7 NZVS, 5 HKGWZ, 10 PSHF => 8 KHKGT

inputs/14s4.txt

@@ -0,0 +1,12 @@
+2 VPVL, 7 FWMGM, 2 CXFTF, 11 MNCFX => 1 STKFG
+17 NVRVD, 3 JNWZP => 8 VPVL
+53 STKFG, 6 MNCFX, 46 VJHF, 81 HVMC, 68 CXFTF, 25 GNMV => 1 FUEL
+22 VJHF, 37 MNCFX => 5 FWMGM
+139 ORE => 4 NVRVD
+144 ORE => 7 JNWZP
+5 MNCFX, 7 RFSQX, 2 FWMGM, 2 VPVL, 19 CXFTF => 3 HVMC
+5 VJHF, 7 MNCFX, 9 VPVL, 37 CXFTF => 6 GNMV
+145 ORE => 6 MNCFX
+1 NVRVD => 8 CXFTF
+1 VJHF, 6 MNCFX => 4 RFSQX
+176 ORE => 6 VJHF

inputs/14s5.txt

@@ -0,0 +1,17 @@
+171 ORE => 8 CNZTR
+7 ZLQW, 3 BMBT, 9 XCVML, 26 XMNCP, 1 WPTQ, 2 MZWV, 1 RJRHP => 4 PLWSL
+114 ORE => 4 BHXH
+14 VRPVC => 6 BMBT
+6 BHXH, 18 KTJDG, 12 WPTQ, 7 PLWSL, 31 FHTLT, 37 ZDVW => 1 FUEL
+6 WPTQ, 2 BMBT, 8 ZLQW, 18 KTJDG, 1 XMNCP, 6 MZWV, 1 RJRHP => 6 FHTLT
+15 XDBXC, 2 LTCX, 1 VRPVC => 6 ZLQW
+13 WPTQ, 10 LTCX, 3 RJRHP, 14 XMNCP, 2 MZWV, 1 ZLQW => 1 ZDVW
+5 BMBT => 4 WPTQ
+189 ORE => 9 KTJDG
+1 MZWV, 17 XDBXC, 3 XCVML => 2 XMNCP
+12 VRPVC, 27 CNZTR => 2 XDBXC
+15 KTJDG, 12 BHXH => 5 XCVML
+3 BHXH, 2 VRPVC => 7 MZWV
+121 ORE => 7 VRPVC
+7 XCVML => 6 RJRHP
+5 BHXH, 4 VRPVC => 5 LTCX

main.go

@@ -44,6 +44,7 @@ var dayMap = []day{
 	&days.Day11{},
 	&days.Day12{},
 	&days.Day13{},
+	&days.Day14{},
 }
 
 func main() {