Day1

src/day1/day1.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"AOC2021/src/helper"
+	"fmt"
+	"os"
+)
+
+func main() {
+	args := os.Args[1:]
+	input, err := helper.GetInput(args[0])
+	if err != nil {
+		fmt.Println(err)
+	}
+	numbers, err := helper.MapToNumber(input)
+	if err != nil {
+		fmt.Println(err)
+	}
+	fmt.Println("Part 1")
+	part1(numbers)
+	fmt.Println("Part 2")
+	part2(numbers)
+
+}
+
+func part2(numbers []int) {
+	fmt.Println(helper.AddNummbers(numbers[0:3]...))
+	amountOfIncreased := 0
+	for i := 1; i < len(numbers)-2; i++ {
+		var change = "decreased"
+		previousWindow := helper.AddNummbers(numbers[i-1 : i+2]...)
+		currentWindow := helper.AddNummbers(numbers[i : i+3]...)
+		if currentWindow > previousWindow {
+			amountOfIncreased++
+			change = "increased"
+		}
+		if currentWindow == previousWindow {
+			change = "no change"
+		}
+		fmt.Printf("%d (%s) \r\n", currentWindow, change)
+	}
+	fmt.Println(amountOfIncreased)
+}
+
+func part1(numbers []int) {
+	amountOfIncreased := 0
+	for i := 1; i < len(numbers); i++ {
+		var change = "decreased"
+		if numbers[i] > numbers[i-1] {
+			amountOfIncreased++
+			change = "increased"
+		}
+		fmt.Printf("%d (%s) \r\n", numbers[i], change)
+	}
+	fmt.Println(amountOfIncreased)
+}

src/day1/day1Test.txt

@@ -0,0 +1,10 @@
+199
+200
+208
+210
+200
+207
+240
+269
+260
+263