move to 2020 fodler

2020/solutions/1/go/main.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strconv"
+	"strings"
+)
+
+const target uint64 = 2020
+
+func findTwo(list []uint64) {
+	for _, a := range list {
+		for _, b := range list {
+			if a+b == target {
+				fmt.Printf("The numbers: %v and %v.\tSolution: %v\n", a, b, a*b)
+				return
+			}
+		}
+
+	}
+}
+
+func findThree(list []uint64) {
+	for _, a := range list {
+		for _, b := range list {
+			for _, c := range list {
+				if a+b+c == target {
+					fmt.Printf("The numbers: %v, %v and %v.\tSolution: %v\n", a, b, c, a*b*c)
+					return
+				}
+			}
+		}
+	}
+}
+
+func main() {
+	data, err := ioutil.ReadFile("./solutions/1/data.txt")
+	if err != nil {
+		fmt.Println("File reading error", err)
+		return
+	}
+
+	lines := strings.Split(strings.TrimSpace(string(data)), "\n")
+	intLines := []uint64{}
+	for _, i := range lines {
+		num, _ := strconv.ParseUint(i, 10, 64)
+		intLines = append(intLines, num)
+	}
+
+	// fmt.Println("Result: ", findTwo(intLines))
+	// fmt.Println("Result: ", findThree(intLines))
+	findTwo(intLines)
+	findThree(intLines)
+}