[ADD] Added day 19 solution

19/input.txt

@@ -0,0 +1,402 @@
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19/main.go

@@ -0,0 +1,105 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+	"time"
+)
+
+const FILE_PATH = "./input.txt"
+
+//const FILE_PATH = "./sample.txt"
+
+func LoadInput(filename string) ([]string, error) {
+	file, err := os.Open(filename)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	var lines []string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		lines = append(lines, scanner.Text())
+	}
+
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	return lines, nil
+}
+
+type Puzzle struct {
+	poss  []string
+	lines []string
+}
+
+type structuredInput = Puzzle
+
+func TransformInput(lines []string) structuredInput {
+	return Puzzle{strings.Split(lines[0], ", "), lines[2:]}
+}
+
+func Part1(input structuredInput) int {
+	var result = 0
+	var poss []string
+	var found bool
+	var work string
+
+	for i, line := range input.lines {
+		fmt.Println(i)
+		poss = []string{line}
+		found = false
+		for !found && len(poss) > 0 {
+			work = poss[0]
+			poss = poss[1:]
+			for j := 0; j < len(input.poss); j++ {
+				if len(input.poss[j]) <= len(work) {
+					if work[:len(input.poss[j])] == input.poss[j] {
+						poss = append(poss, work[len(input.poss[j]):])
+						if len(work[len(input.poss[j]):]) == 0 {
+							found = true
+							break
+						}
+					}
+				}
+			}
+		}
+		if found {
+			result += 1
+		}
+	}
+
+	return result
+}
+
+func Part2(input structuredInput) int {
+	var result = 0
+	return result
+}
+
+func main() {
+	var start time.Time
+	var elapsed time.Duration = 0
+	input, err := LoadInput(FILE_PATH)
+	if err != nil {
+		fmt.Println("Error loading input:", err)
+		return
+	}
+
+	structuredInput := TransformInput(input)
+	fmt.Println("Structured Input:", structuredInput)
+
+	start = time.Now()
+	fmt.Println("Solution Part 1: ", Part1(structuredInput))
+	elapsed = time.Since(start)
+	fmt.Printf("Part 1 took %s\n", elapsed)
+
+	start = time.Now()
+	fmt.Println("Solution Part 2: ", Part2(structuredInput))
+	elapsed = time.Since(start)
+	fmt.Printf("Part 2 took %s\n", elapsed)
+}

19/sample.txt

@@ -0,0 +1,10 @@
+r, wr, b, g, bwu, rb, gb, br
+
+brwrr
+bggr
+gbbr
+rrbgbr
+ubwu
+bwurrg
+brgr
+bbrgwb