init

2023/day5/p1/main.go

@@ -0,0 +1,98 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type ConversionRange struct {
+	source_start int
+	source_end   int
+	target_start int
+	target_end   int
+	translate    int
+}
+
+func convert(c *ConversionRange, num int) int {
+	if num >= c.source_start && num <= c.source_end {
+		return num + c.translate
+	} else {
+		return -1
+	}
+}
+
+func print(c ConversionRange) {
+	fmt.Println()
+}
+
+func main() {
+	file, _ := os.Open("./test.text")
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	var seed_to_soil []*ConversionRange
+
+	// Parse file
+	index := 0
+	s_to_s_mapping := false
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		// Get starting seeds
+
+		if index == 0 {
+			seeds_list := strings.Split(line, ": ")[1]
+			seeds_value_list := strings.Split(seeds_list, " ")
+
+			var seeds []int
+
+			for _, seed := range seeds_value_list {
+				seed_value, _ := strconv.Atoi(seed)
+				seeds = append(seeds, seed_value)
+			}
+
+			fmt.Println("Seeds: ", seeds)
+		}
+
+		if line == "seed-to-soil map:" {
+			s_to_s_mapping = true
+			continue
+		}
+
+		if s_to_s_mapping {
+			if line == "" {
+				s_to_s_mapping = false
+				for _, r := range seed_to_soil {
+					print(r)
+				}
+				continue
+			} else {
+				var r_values []int
+				range_strings := strings.Split(line, " ")
+				for _, r := range range_strings {
+					r_value, _ := strconv.Atoi(r)
+					r_values = append(r_values, r_value)
+				}
+
+				var temp *ConversionRange
+				temp = new(ConversionRange)
+
+				temp.target_start = r_values[0]
+				temp.source_start = r_values[1]
+				length := r_values[2]
+
+				temp.target_end = temp.target_start + length
+				temp.source_end = temp.source_start + length
+				temp.translate = temp.target_start - temp.target_end
+
+				seed_to_soil = append(seed_to_soil, temp)
+			}
+		}
+
+		index++
+	}
+
+}