:work: Working with part 2 of day 7

day7/main.go

@@ -3,6 +3,7 @@ package main
 import (
 	"bufio"
 	"errors"
+	"fmt"
 	"log"
 	"math"
 	"os"
@@ -62,7 +63,7 @@ func SolvePuzzle1(list []int) {
 
 func SolvePuzzle2(list []int) {
 
-	rawr := []int{9, 8, 7, 6, 5}
+	rawr := []int{5, 6, 7, 8, 9}
 	combinations := permutations(rawr)
 	highestOutput := math.MinInt32
 	//highestInput := ""
@@ -107,10 +108,19 @@ func RunAmplification(list []int, phases []int) int {
 func RunRecursiveAmplification(list []int, phases []int) int {
 	signal := []string{"0"}
 
-	i := 0
+	amplifier := make([][]int, 0)
-	for true {
+
-		wip := make([]int, len(list))
+	for i := 0; i < 5; i++ {
-		copy(wip, list)
+		log.Println("============")
+		log.Println(i)
+		if len(amplifier) <= i {
+			log.Println(len(amplifier))
+			wip := make([]int, len(list))
+			copy(wip, list)
+			amplifier = append(amplifier, wip)
+			log.Println(len(amplifier))
+
+		}
 
 		inputs := make([]int, 0)
 		inputs = append(inputs, phases[i])
@@ -119,7 +129,7 @@ func RunRecursiveAmplification(list []int, phases []int) int {
 			inputs = append(inputs, inputStr)
 		}
 
-		output, err, cmdSuccess := ParseArray(wip, inputs)
+		output, err, cmdSuccess := ParseArray(amplifier[i], inputs)
 
 		if err != nil {
 			log.Printf("Problem at Amplification: %d", i+1)
@@ -128,20 +138,23 @@ func RunRecursiveAmplification(list []int, phases []int) int {
 
 		signal = output
 
-		if cmdSuccess && i == 4 {
+		if cmdSuccess {
 			break
 		}
 
 		if i == 4 {
 			i = -1
 		}
-		i++
 	}
 	sigInt, _ := strconv.Atoi(signal[len(signal)-1])
 	return sigInt
 }
 
-func ParseArray(list []int, inputs []int) (output []string, err error, cmdEnd bool) {
+func ParseArray(list []int, inputs []int) ([]string, error, bool) {
+	var (
+		output []string
+	)
+
 	inputIndex := 0
 	output = make([]string, 0)
 
@@ -152,6 +165,7 @@ func ParseArray(list []int, inputs []int) (output []string, err error, cmdEnd bo
 		if cmd == 99 {
 			return output, nil, true
 		}
+
 		sum := 0
 
 		mode1 := 0
@@ -207,8 +221,6 @@ func ParseArray(list []int, inputs []int) (output []string, err error, cmdEnd bo
 			sum = num1 * num2
 			list[list[i+3]] = sum
 		} else if cmd == 3 {
-			//log.Println(i)
-
 			if len(inputs) > inputIndex {
 				input := inputs[inputIndex]
 				inputIndex++
@@ -226,7 +238,7 @@ func ParseArray(list []int, inputs []int) (output []string, err error, cmdEnd bo
 			} else {
 				output = append(output, strconv.Itoa(list[list[i+1]]))
 			}
-			i = i - 2
+			i -= 2
 		} else if cmd == 5 {
 			num1 := -1
 			if mode1 == 1 {
@@ -303,6 +315,12 @@ func ParseArray(list []int, inputs []int) (output []string, err error, cmdEnd bo
 			return output, errors.New("Wrong Command (" + strconv.Itoa(list[i]) + ") at position " + strconv.Itoa(i)), false
 		}
 	}
+
+	if len(inputs) > inputIndex {
+		output = append(strings.Fields(fmt.Sprint(inputs[inputIndex:])), output...)
+	}
+
+	log.Println("NONE")
 	return output, nil, false
 }
 

day7/main_test.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestExampleRecursive1(t *testing.T) {
+	text := "3,26,1001,26,-4,26,3,27,1002,27,2,27,1,27,26,27,4,27,1001,28,-1,28,1005,28,6,99,0,0,5"
+	stringarr := strings.Split(text, ",")
+	var t2 = []int{}
+
+	for _, i := range stringarr {
+		j, err := strconv.Atoi(i)
+		if err != nil {
+			panic(err)
+		}
+		t2 = append(t2, j)
+	}
+	goal := RunRecursiveAmplification(t2, []int{9, 8, 7, 6, 5})
+	success := 139629729
+	if goal != success {
+		t.Errorf("Example 1 was incorrect, got: {%d}, want: {%d}.", goal, success)
+	}
+}
+
+func TestExampleRecursive2(t *testing.T) {
+	text := "3,52,1001,52,-5,52,3,53,1,52,56,54,1007,54,5,55,1005,55,26,1001,54,-5,54,1105,1,12,1,53,54,53,1008,54,0,55,1001,55,1,55,2,53,55,53,4,53,1001,56,-1,56,1005,56,6,99,0,0,0,0,10"
+	stringarr := strings.Split(text, ",")
+	var t2 = []int{}
+
+	for _, i := range stringarr {
+		j, err := strconv.Atoi(i)
+		if err != nil {
+			panic(err)
+		}
+		t2 = append(t2, j)
+	}
+	goal := RunRecursiveAmplification(t2, []int{9, 7, 8, 5, 6})
+	success := 18216
+	if goal != success {
+		t.Errorf("Example 2 was incorrect, got: {%d}, want: {%d}.", goal, success)
+	}
+}