[INI] main: Initial commit

01/main.go

@@ -0,0 +1,122 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"math"
+	"os"
+	"strconv"
+	"strings"
+)
+
+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
+}
+
+func TransformInput(lines []string) [2][]int {
+	var result [2][]int
+
+	for _, line := range lines {
+		var numbs = strings.Split(line, "   ")
+		var numb int
+		numb, _ = strconv.Atoi(numbs[0])
+		result[0] = append(result[0], numb)
+		numb, _ = strconv.Atoi(numbs[1])
+		result[1] = append(result[1], numb)
+	}
+
+	return result
+}
+
+func Sort(input []int) []int {
+	var result []int = make([]int, len(input))
+	var temp int
+	copy(result, input)
+
+	for i := 0; i < len(result)-1; i++ {
+		for j := 0; j < len(result)-i-1; j++ {
+			if result[j] > result[j+1] {
+				temp = result[j]
+				result[j] = result[j+1]
+				result[j+1] = temp
+			}
+		}
+	}
+
+	return result
+}
+
+func Part1(input [2][]int) int {
+	var result = 0
+	var sorted [2][]int = [2][]int{Sort(input[0]), Sort(input[1])}
+	for i := 0; i < len(sorted[0]); i++ {
+		result += int(math.Abs((float64)(sorted[0][i] - sorted[1][i])))
+	}
+	return result
+}
+
+func Part2(input [2][]int) int {
+	var sorted [2][]int = [2][]int{Sort(input[0]), Sort(input[1])}
+	var result = 0
+	var r = 0
+	var l = 0
+	var count_l = 0
+	var count_r = 0
+
+	for r < len(sorted[1]) && l < len(sorted[0]) {
+		count_r = 0
+		count_l = 1
+
+		for r < len(sorted[1]) && sorted[1][r] < sorted[0][l] {
+			r++
+		}
+		for r < len(sorted[1]) && sorted[1][r] == sorted[0][l] {
+			count_r++
+			r++
+		}
+
+		l++
+
+		for l < len(sorted[0]) && sorted[0][l-1] == sorted[0][l] {
+			count_l++
+			l++
+		}
+		result += count_l * count_r * sorted[0][l-1]
+	}
+
+	return result
+}
+
+func main() {
+	input, err := LoadInput(FILE_PATH)
+	if err != nil {
+		fmt.Println("Error loading input:", err)
+		return
+	}
+
+	structuredInput := TransformInput(input)
+	fmt.Println("Structured Input:", structuredInput)
+
+	fmt.Println("Solution Part 1: ", Part1(structuredInput))
+	fmt.Println("Solution Part 2: ", Part2(structuredInput))
+}

01/sample.txt

@@ -0,0 +1,6 @@
+3   4
+4   3
+2   5
+1   3
+3   9
+3   3