Day 1 done

1 files changed, 77 insertions, 0 deletions

diff --git a/2024/go/src/main.go b/2024/go/src/main.go
new file mode 100644
index 0000000..cde4b79
--- /dev/null
+++ b/2024/go/src/main.go
@@ -0,0 +1,77 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+func AbsInt(x int) int {
+	if x < 0 {
+		return -x
+	}
+	return x
+}
+
+func solve_part_one(data string) int {
+	var list_1 []int
+	var list_2 []int
+
+	ans := 0
+	for _, line := range strings.Split(data, "\n") {
+		if len(line) > 0 {
+			elements := strings.Split(line, "   ")
+			ele1, _ := strconv.Atoi(elements[0])
+			ele2, _ := strconv.Atoi(elements[1])
+			list_1 = append(list_1, ele1)
+			list_2 = append(list_2, ele2)
+		}
+	}
+	sort.Ints(list_1)
+	sort.Ints(list_2)
+	for i := range len(list_1) {
+		ans += AbsInt(list_1[i] - list_2[i])
+	}
+	return ans
+}
+
+func solve_part_two(data string) int {
+	var list_1 []int
+	var list_2 []int
+
+	ans := 0
+	for _, line := range strings.Split(data, "\n") {
+		if len(line) > 0 {
+			elements := strings.Split(line, "   ")
+			ele1, _ := strconv.Atoi(elements[0])
+			ele2, _ := strconv.Atoi(elements[1])
+			list_1 = append(list_1, ele1)
+			list_2 = append(list_2, ele2)
+		}
+	}
+	counts := make(map[int]int)
+
+	for _, num := range list_2 {
+		counts[num]++
+	}
+	for i := range len(list_1) {
+		ans += list_1[i] * counts[list_1[i]]
+	}
+	return ans
+}
+
+func main() {
+	test_1, _ := os.ReadFile("../input/day_1.test")
+	test_2, _ := os.ReadFile("../input/day_1_2.test")
+	prod, _ := os.ReadFile("../input/day_1.prod")
+	content_test_1 := string(test_1)
+	content_test_2 := string(test_2)
+	content_prod := string(prod)
+
+	fmt.Println("Part_1 test: ", solve_part_one(content_test_1))
+	fmt.Println("Part_1 prod: ", solve_part_one(content_prod))
+	fmt.Println("Part_2 test: ", solve_part_two(content_test_2))
+	fmt.Println("Part_2 prod: ", solve_part_two(content_prod))
+}