1 files changed, 24 insertions(+), 5 deletions(-)

M 2/main.go

@@ 20,7 20,7 @@ func calcOpcode(lines []int) int {
 		case 2:
 			lines[lines[pos+3]] = lines[lines[pos+1]] * lines[lines[pos+2]]
 		default:
-			fmt.Println("Error")
+			// fmt.Println("Error")
 			return 0
 		}
 		pos += 4


@@ 45,10 45,29 @@ func parseInput(file string) []int {
 	return lines
 }
 
+func startInput(noun int, verb int, list []int) []int {
+	list[1] = noun
+	list[2] = verb
+	return list
+}
+
 func main() {
 	lines := parseInput("input.txt")
-	lines[1] = 12
-	lines[2] = 2
-	fmt.Println(lines)
-	fmt.Println(calcOpcode(lines))
+	input := make([]int, len(lines))
+	copy(input, lines)
+	input = startInput(12, 2, input)
+	fmt.Println(calcOpcode(input))
+
+	// Part 2
+	goal := 19690720
+	for noun := 0; noun <= 99; noun++ {
+		for verb := 0; verb <= 99; verb++ {
+			copy(input, lines)
+			input = startInput(noun, verb, input)
+			result := calcOpcode(input)
+			if result == goal {
+				fmt.Println(noun*100 + verb)
+			}
+		}
+	}
 }