in GO!

Author: Robb Kidd

2022/go/day04/main.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/robbkidd/aoc2022/tools"
+)
+
+func main() {
+	input := parseInput(tools.Read("day04"))
+	fmt.Printf("Part 1: %v\n", p1(input))
+	fmt.Printf("Part 2: %v\n", p2(input))
+}
+
+func p1(lines []string) int {
+	var fullyCovered int
+	for _, line := range lines {
+		pair := strings.Split(line, ",")
+		left := strings.Split(pair[0], "-")
+		right := strings.Split(pair[1], "-")
+		leftStart, _ := strconv.Atoi(left[0])
+		leftStop, _ := strconv.Atoi(left[1])
+		rightStart, _ := strconv.Atoi(right[0])
+		rightStop, _ := strconv.Atoi(right[1])
+
+		if leftStart >= rightStart && leftStop <= rightStop {
+			fullyCovered++
+			continue
+		}
+
+		if leftStart <= rightStart && leftStop >= rightStop {
+			fullyCovered++
+			continue
+		}
+	}
+	return fullyCovered
+}
+
+func p2(input []string) int {
+	return 0
+}
+
+type Pair struct {
+	left  Assignment
+	right Assignment
+}
+type Assignment struct {
+	start int
+	stop  int
+}
+
+func parseInput(input string) []string {
+	return tools.Lines(input)
+}

2022/go/day04/main_test.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestExamplePart1(t *testing.T) {
+	assert.Equal(t,
+		2,
+		p1(parseInput(example)))
+}
+
+// func TestExamplePart2(t *testing.T) {
+// 	assert.Equal(t,
+// 		'heyo',
+// 		p2(parseInput(example)))
+// }
+
+const (
+	example = `2-4,6-8
+2-3,4-5
+5-7,7-9
+2-8,3-7
+6-6,4-6
+2-6,4-8`
+)